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For the Inventor, By the Inventor

Shiga, Japan

Hisashi Higuchi

This inventor holds 4 USPTO granted patents. Top assignees: Kyocera Corporation, Takao Kawamura. Active years: 1987-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Higuchi. Retrieved from https://idiyas.com/inventor/hisashi-higuchi-k3t03gdj

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

Calculating rank
USPTO Granted Patents = 4

% Patents Active = 75.0

Average Co-Inventor Count = 4.7

ph-index = 2

Forward Citations = 12(Granted Patents)


Location History:

  • Kagoshima, JP (1987)
  • Yohkaichi, JP (1993)
  • Shiga, JP (1998 - 2012)

Company Filing History:

goldMedal4 out of 6,938 
 
Kyocera Corporation
 patents
silverMedal1 out of 5 
 
Takao Kawamura
 patents
where one patent can have more than one assignee

Years Active: 1987-2012

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4 patents (USPTO):Explore Patents
1. 8227733 - Combined photoelectric conversion device (2012-07-24),
2. 5729800 - Electrophotographic apparatus having an a-Si photosensitive drum (1998-03-17),
3. 5262263 - Layer electrophotographic sensitive member comprising morphous silicon (1993-11-16),
4. 4689284 - Electrophotographic sensitive member (1987-08-25),

Title: Hisashi Higuchi: Innovator in Photoelectric Conversion Technology

Introduction

Hisashi Higuchi is a notable inventor based in Shiga, Japan, recognized for his contributions to photoelectric conversion devices. With a total of four patents to his name, Higuchi has made significant advancements in the field of electrophotographic technology.

Latest Patents

Higuchi's latest patents include a combined photoelectric conversion device and an electrophotographic apparatus utilizing an a-Si photosensitive drum. The combined photoelectric conversion device features a multi-layer design where a first photoelectric converter is separated from a second by an insulative layer. This design aims to reduce pinhole faults, enhancing the device's reliability. His electrophotographic apparatus employs an a-Si photosensitive drum with specific thickness and charging potential parameters, optimizing its performance for low electric field development.

Career Highlights

Throughout his career, Higuchi has worked with prominent companies such as Kyocera Corporation and Takao Kawamura. His experience in these organizations has contributed to his expertise in developing innovative technologies in the field of photoelectric devices.

Collaborations

Higuchi has collaborated with notable colleagues, including Tadashi Ohba and Norio Tomiie, further enriching his work and contributions to the industry.

Conclusion

Hisashi Higuchi's innovative work in photoelectric conversion technology and electrophotographic apparatuses showcases his significant impact on the field. His patents reflect a commitment to advancing technology and improving device performance.

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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