Hanwha Techwin Co., Ltd. (Changwon, KR)

This article discusses a method to post-treat graphene. This involves putting graphene on a thin film of metal and then providing a carrier for graphene, and hardening that carrier.

1. Field

Methods and apparatus that are compatible with exemplary embodiments relate to post treating graphene and manufacturing the graphene using the same.

2. Description of Related Art

In various areas carbon-based substances like graphite and diamond are currently being investigated. These carbon-based materials can be used in field effect transistors (FET) nanocomposites, biosensors, or quantum devices.

The graphene material, which is a two-dimensional one is a semiconductor with a band gap that is zero. Numerous studies on graphene’s electrical properties have been published in the last few years. The electricalcharacteristics of the graphene include a biopolar supercurrent, a spin transport, and a quantum hole effect. Graphene is a substance that could be used as a base unit to integrate carbon-based nanoelectron devices.

The graphene industry is growing in popularity, therefore it is important to find a way to create graphene of superior quality.

One or more exemplary embodiments describe a process for producing high-quality graphene with enhanced electrical properties, by significantly cutting resistance. It also provides a method of manufacturing high quality graphene in a largescale.

An aspect of an example embodiment provides a method for post-treating graphene. This involves placing graphene in a thin metal layer and supplying a carrier for graphene, and then hardening the carrier.

The post-treatment of graphene may be performed with a reel-toreel method.

The thin metal films can be panels. A transporting device can move the metal thin films.

Frames may be enclosed by thin metal film.

The metal thin film is supported by a base member which is placed on the opposite side of the graphene’s surface.

The provision of the carrier can consist of supplying the carrier to an outer surface of a coating roller; and then coating the provided carrier onto the metal thin film.

This could involve printing the carrier or coating it with graphene.

One of the carriers could be one of the following: an acrylic substance; a silicon-based materials or an epoxy-based substance.

If the carrier is one selected from a group consisting of acrylic materials, the carrier may be polynethylmethacrylate (PMMA) or a water soluble acrylic resin.

If the material is selected from a group consisting of silicon-based materials, the carrier could be polydimethylsiloxane (PDMS) or a silicon adhesive.

The process of hardening the carrier can involve making the carrier harder by using a hardening device separated by a predetermined distance from the carrier that emits heat or light to the liquid phase carrier.

The process of removing the thin film of metal could be followed by the etching.

After removing the thin metal film, the method can also include providing a protective layer; and securing the graphene.

The method may further include removing the carrier.

The carrier could be a liquid phase.

A hardening device that doesn’t exert pressure to the graphene could be used to harden the carrier.

The coating roller should not get in the way of the graphene carrier or the carrier.

In accordance with an aspect of another exemplary embodiment, there is the method for making graphene, which includes transporting a thin film to a graphene forming apparatus and forming graphene onto the metal thin film; providing a carrier on a first surface of graphene, hardening the carrier, removing the metal thin film from the graphene; and then forming a protective layer on a second surface of graphene.

The post treatment of graphene can be done with a reel-toreel method.

The thin metal film could form a panel and the post treating of graphene may be performed when a transporter unit is transporting the thin metal film.

This could involve placing the carrier onto a coating roller’s exterior surface; then coating the provided carrier onto the thin metal film.

The material may be at a minimum one from the following group: PMMA or a water-soluble acrylic resin, PDMS the silicon adhesive, water-soluble epoxy resin a modified epoxy resin that is water-soluble polyurethane resin, water soluble natural polymer resin, a water-system adhesive that is a visible light-hardening adhesive, an infrared radiation hardening adhesive, an electron beam hardening adhesive, the polybenzimidazole (PBI) adhesive or a polyimide adhesive an imide adhesive, bismaleimide (BMI) groupadhesive or hot-melt adhesive.

Removal of thin films of metal may involve cutting and etching.

The method may further include removing the carrier from the graphene used in the protective film.

The removal of the carrier may include melting the carrier in a solvent.

It is possible to melt the carriers or place it in solvent.

In accordance with an aspect of a further example embodiment it is disclosed graphene that is post-treated in accordance with the method of post treating graphene or the method for making graphene.

According to an additional aspect of a exemplary embodiment, there is an apparatus for manufacturing graphene including a transportation unit which transports the thin metal film through the apparatus, a graphene forming apparatus whichreceives the thin metal film from the transport unit and disposes graphene on the thin film of metal and a coating unit for the carrier that disposes a carrier onto one of the first surfaces of graphene; a device for hardening that hardens the carrier the metal film removal unit that removes the metal thin film from the graphene and a protective film unit which puts a protective film onto an additional surface of graphene.

The transportation unit may include a plurality of reels.

The transporter could include a conveyer.

A coating roller can be incorporated into the coating unit. It is situated at a predetermined distance from thin metal films. It does not exert pressure to the graphene.

The hardening device may be separated by a second determined distance from the device and can also emit light or heat towards the carrier.

Click here to view the patent on USPTO website.

Get Patents with PatentPC

What is a patent?

A patent is issued by the government to safeguard the invention. The patent grants the inventor the exclusive right to develop, utilize and sell the invention. Society gains when new technologies are brought to the market. These benefits may be directly realized by people who are able to perform feats previously thought impossible and indirectly by the opportunities for economic growth which innovation can bring (business growth, employment).

Many pharmaceutical firms and university researchers are seeking patent protection for their research and developments. Patents are granted to products, processes, or method for making new materials. Patent protection is granted to an invention that is useful or novel and is not yet known by other people in the same field.

Patents are awarded to inventors who have commercially successful inventions. They act as an incentive for inventors to invent. Patents allow inventors and small businesses to know that there is the possibility that they’ll get a profit for their time, effort and investment in technology development. It means that they can earn money from their work.

Businesses that have the capacity to:

Secure innovative products and services;

Improve the value, the popularity, and appeal of your product on the market;

Differentiate yourself and your products from the competition.

Access to business and technical knowledge and data;

Avoid accidentally using third-party content or risk losing valuable information, creative outputs, and other outputs.

Patents transform inventor’s knowledge into a marketable asset, which opens up new opportunities for job creation by licensing joint ventures and joint ventures.

Small companies that have patent protection will be more attractive to investors in the commercialization and development of technology.

Patenting could lead to the development of innovative ideas and inventions. This information could be protected by patents.

Patents can be used to stop untrustworthy third-party companies from earning from the invention’s efforts.

The profits from technology patents that are successful and commercially viable could be used to fund the development of technology through research and development (R&D) that will increase the chance of better technology in the coming years.

It is possible to use intellectual property ownership to convince investors and lenders that your product is a viable commercial value. One patent that is powerful could provide multiple financing opportunities. Patents and other IP assets are able to be used as collateral or as security for financing debt. Investors can also see your patent assets to increase company valuation. Forbes and other publications have noted that every patent can boost the value of a company by anything from $500,000 to $1 million.

Start-ups require a well-thought-out business plan that is built on the IP to prove that your product or service is unique and superior or ingenuous. Additionally, investors will be impressed if you can show that you have IP rights are secure or are in the process of becoming secure and that they support your business plan.

It is important to keep an invention secret until you apply to protect it with patents. The public divulging an invention could frequently devalue its originality and invalidate it. Pre-filing disclosures, such as for investors, test-marketing or any other business partners must be done after signing a confidentiality agreement.

There are numerous types of patents. Knowing them is essential to safeguard your invention. Utility patents cover new processes and machine creations. Design patents cover ornamental designs. Utility patents are the best because they shield the owner from copycats and competition. They are typically issued to improve or alter existing inventions. They can also be used to enhance or alter existing inventions. A process patent could be a way to describe the actions or methods of performing a particular act. But, a chemical composition would include an amalgamation of components.

How long does a patent last? While utility patents are valid up to 20 years from their earliest filing, they are able to be extended through delay in the patent office.

Do you wish to protect your idea? Patents are granted only to the first applicants to file so you must file quickly. Call PatentPC today to file your patent application filed!

Patent searches are essential when you are drafting a patent application. This will allow you to see other ideas and give you an understanding of them. This can help you restrict the potential of your invention. Furthermore, you’ll discover the latest technological advancements in your field of innovation. You’ll get a better understanding of what your idea should be and will be better prepared for writing your patent application.

How to Search for Patents

The first step to get the patent you want is to do an internet search for patents. You can do a google patent search or do a USPTO search. Patent-pending is the name used to describe the product that has been covered by the patent application. You can search the public pair to find the patent application. When the patent office is satisfied with your application, you will be able to do an examination of the patent number to find the patent issued. Your product will now be patented. Alongside the USPTO search engine, you can also utilize other search engines like espacenet as described below. It is possible to seek help from a patent lawyer. Patents in the United States are granted by the US trademark and patent office, also known as the United States patent office and trademark office. This office also reviews trademark applications.

Interested in finding more similar patents? These are the steps:

1. Brainstorm terms to describe your invention, based on its purpose, composition, or use.

Write down a concise detailed description of the invention. Be sure to avoid using terms that are generic such as “device,” “process,” and “system.” Instead, think about synonyms for the terms you chose initially. Next, take note of significant technical terms as well as keywords.

Use the questions below to help you determine key words or concepts.

  • What is the goal of the invention? Is it a utilitarian device or an ornamental design?
  • Invention can be described as a method of create something or perform an action? Is it a product or process?
  • What is the nature and purpose of the invention? What is the physical makeup of the invention?
  • What is the goal of this invention?
  • What are the terms used in technical terminology and key words that define the nature of an invention? A technical dictionary can help you find the appropriate terms.

2. Use these terms to search for relevant Cooperative Patent Classifications at the Classification Text Search Tool. If you’re not able to determine the correct classification to describe your invention, look through the classification’s class Schemas (class schedules). If you do not get results using the Classification Text Search, you might consider substituting your words that describe your invention using synonyms.

3. Go through the CPC Classification Definition for confirmation of the CPC classification you found. If the chosen classification is a blue box that has an “D” at its left, clicking on the hyperlink will take you to the CPC classification definition. CPC classification definitions will help identify the scope of the classification which is why you can be certain to choose the one that is relevant. They may also provide research tips or other suggestions that could be helpful for further investigation.

4. Find patent documents that have the CPC classification from the Patents Full-Text and Image Database. By focusing your search on abstracts and drawings that are representative it is possible to narrow your search to the relevant patent documents.

5. Use this selection of the most pertinent patent documents to study each one in depth for any similarities to your idea. Be sure to read the claims and specification. Consult the applicant and patent examiner for any additional patents.

6. Retrieve published patent applications with the CPC classification you picked in Step 3 from the Applications Full-Text and Image Database. It is possible to use the same strategy of searching in Step 4 to narrow your results to the most relevant patent application by examining the abstract and drawings on each page. Next, examine the patent applications that have been published carefully with particular attention paid to the claims and other drawings.

7. You can look up other US patent publications by keyword searches in AppFT or PatFT databases, and also the classification search of patents that are that aren’t from the United States as according to below. Additionally, you can make use of search engines on the internet to search non-patent literature disclosures about inventions. For instance:

  • Add keywords to your search. Keyword searches may turn up documents that are not well-categorized or have missed classifications during Step 2. For example, US patent examiners often supplement their classification searches with keyword searches. Think about the use of technical engineering terminology rather than everyday words.
  • Search for foreign patents using the CPC classification. Then, re-run the search using international patent office search engines such as Espacenet, the European Patent Office’s worldwide patent publication database of over 130 million patent publications. Other national databases include:
  • Search non-patent literature. Inventions can be made public in many non-patent publications. It is recommended that you search journals, books, websites, technical catalogs, conference proceedings, and other print and electronic publications.

To review your search, you can hire a registered patent attorney to assist. A preliminary search will help one better prepare to talk about their invention and other related inventions with a professional patent attorney. In addition, the attorney will not spend too much time or money on patenting basics.