Hiroshi Koezuka

This inventor holds 11 USPTO granted patents. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Sumitomo Chemical Company, Limited. Active years: 1989-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Koezuka. Retrieved from https://idiyas.com/inventor/hiroshi-koezuka

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 3.9

ph-index = 8

Forward Citations = 332(Granted Patents)

Location History:

Nishinomiya, JP (1989)
Hyogo, JP (1992 - 1993)
Hyogo-ken, JP (1999)
Amagasaki, JP (1992 - 2000)

Company Filing History:

11 out of 21,351

Mitsubishi Denki Kabushiki Kaisha

patents

3 out of 6,961

Sumitomo Chemical Company, Limited

patents

where one patent can have more than one assignee

Years Active: 1989-2000

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6060338 - Method of making a field effect transistor (2000-05-09),

2. 6060333 - Method of making a liquid crystal display including a field effect (2000-05-09),

3. 5981146 - Resist coating film (1999-11-09),

4. 5948578 - Photoresist (1999-09-07),

5. 5892244 - Field effect transistor including .pi.conjugate polymer and liquid (1999-04-06),

6. 5500537 - Field-effect transistor with at least two different semiconductive (1996-03-19),

7. 5204218 - Photosensitive resin composition (1993-04-20),

8. 5107308 - Field-effect transistor (1992-04-21),

9. 5100762 - Radiation-sensitive polymer and radiation-sensitive composition (1992-03-31),

10. 5097317 - Resin-sealed semiconductor device (1992-03-17),

11. 4873556 - Hetero-junction device (1989-10-10),

Title: Hiroshi Koezuka: Innovator in Liquid Crystal Display Technology

Introduction

Hiroshi Koezuka is a prominent inventor based in Amagasaki, Japan. He has made significant contributions to the field of liquid crystal display technology, holding a total of 11 patents. His innovative methods have paved the way for advancements in display devices.

Latest Patents

Koezuka's latest patents include a method of making a liquid crystal display that incorporates a field effect. This method involves several steps, such as forming a gate electrode on an electrically insulating substrate and creating source and drain electrodes on opposite sides of the gate electrode. Additionally, he has developed a method for fabricating a field effect transistor, which also includes forming a semiconducting film of a π-conjugated polymer.

Career Highlights

Throughout his career, Koezuka has worked with notable companies, including Mitsubishi Electric Corporation and Sumitomo Chemical Company, Limited. His experience in these organizations has contributed to his expertise in the field of electronics and display technologies.

Collaborations

Koezuka has collaborated with esteemed colleagues such as Akira Tsumura and Hiroyuki Fuchigami. Their joint efforts have further advanced the research and development of innovative technologies in the industry.

Conclusion

Hiroshi Koezuka's contributions to liquid crystal display technology and field effect transistors highlight his role as a leading inventor in the field. His work continues to influence advancements in display devices and semiconductor technologies.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]