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For the Inventor, By the Inventor

Takatsuki, Japan

Hironobu Iyama

This inventor holds 8 USPTO granted patents and 4 published patent applications. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1997-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hironobu Iyama. Retrieved from https://idiyas.com/inventor/hironobu-iyama

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

USPTO Granted Patents = 8 

% Patents Active = 50.0

Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 61(Granted Patents)


Location History:

  • Ibaraki, JP (1998)
  • Takatsuki, JP (2004)
  • Niihama, JP (2009)
  • Osaka, JP (1997 - 2013)

Company Filing History:

goldMedal8 out of 6,964 
 
Sumitomo Chemical Company, Limited
 patents

Years Active: 1997-2013

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8 patents (USPTO):Explore Patents
1. 8465670 - Liquid crystal polyester composition and electronic circuit board using the same (2013-06-18),
2. 7609448 - Light diffuser plate (2009-10-27),
3. 6815481 - Polybutadiene composition (2004-11-09),
4. 6756432 - Polybutadiene composition (2004-06-29),
5. 5717053 - Co-condensation product and rubber composition containing the same (1998-02-10),
6. 5698717 - Process for preparing hydroxyflavan compounds (1997-12-16),
7. 5688871 - Rubber composition containing a flavan compound and a method for (1997-11-18),
8. 5665799 - Rubber composition and a vulcanizing adhesion method using the same (1997-09-09),

Title: Hironobu Iyama: Innovator in Liquid Crystal Technology

Introduction

Hironobu Iyama is a prominent inventor based in Takatsuki, Japan. He has made significant contributions to the field of liquid crystal technology, holding a total of 8 patents. His work focuses on developing materials that enhance the performance of electronic devices.

Latest Patents

Iyama's latest patents include a liquid crystal polyester composition and an electronic circuit board utilizing this composition. The liquid crystal polyester composition is designed to serve as a material for forming a liquid crystal polyester film with excellent thermal conductivity. This innovation aims to provide an insulating film that significantly improves the performance of electronic circuit boards. Additionally, he has developed a light diffuser plate that enhances brightness when used in surface light sources for transmissive image displays. This plate comprises a transparent resin and a light diffuser, ensuring high light transmittance and optimal performance.

Career Highlights

Hironobu Iyama is associated with Sumitomo Chemical Company, Limited, where he has been instrumental in advancing liquid crystal technologies. His expertise in material science has led to breakthroughs that benefit various electronic applications.

Collaborations

Iyama has collaborated with notable colleagues, including Naoki Inui and Hideo Nagasaki, contributing to the innovative projects at Sumitomo Chemical Company.

Conclusion

Hironobu Iyama's contributions to liquid crystal technology and his innovative patents have significantly impacted the electronics industry. His work continues to pave the way for advancements in material science and electronic applications.

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]
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