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Kagoshima, Japan

Ohkuchi Materials Co., Ltd.

USPTO Granted Patents = 18

Forward Citations = 11

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13 inventors (with patents filed for the assignee):

Kaoru Hishiki (12 out of 15 patents)

Keiichi Otaki (7 out of 8 patents)

Kotaro Tomeoka (7 out of 7 patents)

4. Hidehiko Sasaki (7 out of 7 patents)

5. Ichinori Iidani (4 out of 5 patents)

6. Shunichi Kidoguchi (1 out of 1 patent)

7. Ryouichi Yoshimoto (1 out of 1 patent)

8. Masaki Yamaguchi (1 out of 1 patent)

9. Jun Fukuzaki (1 out of 2 patents)

10. Kazunori Iitani (1 out of 1 patent)

11. Satoshi Kubota (1 out of 1 patent)

12. Ryuuji Ookawauchi (1 out of 1 patent)

13. Shigeru Hosomomi (1 out of 3 patents)

18 patents: Sort by Forward Citations

1. 11404286 - Lead frame (2022-08-02),

2. 11062983 - Substrate for mounting semiconductor element (2021-07-13),

3. 10903150 - Lead frame (2021-01-26),

4. 10886206 - Lead frame, resin-equipped lead frame, optical semiconductor device, and method for manufacturing lead frame (2021-01-05),

5. 10847451 - Device for mounting semiconductor element, lead frame, and substrate for mounting semiconductor element (2020-11-24),

6. 10811346 - Lead frame (2020-10-20),

7. 10777492 - Substrate for mounting semiconductor element (2020-09-15),

8. 10763202 - Multi-row wiring member for semiconductor device and method for manufacturing the same (2020-09-01),

9. 10763196 - Lead frame (2020-09-01),

10. 10727171 - Lead frame (2020-07-28),

11. 10622286 - Lead frame and method for manufacturing the same (2020-04-14),

12. 10453782 - Multi-row wiring member for semiconductor device and method for manufacturing the same (2019-10-22),

13. 10312187 - Multi-row wiring member for semiconductor device and method for manufacturing the same (2019-06-04),

14. 10305007 - Multi-row LED wiring member and method for manufacturing the same (2019-05-28),

15. 10304760 - Lead frame and method for manufacturing the same (2019-05-28),

Company Overview

Ohkuchi Materials Co., Ltd. is a Japanese company based in Kagoshima, specializing in the development and manufacturing of advanced materials. The organization focuses on innovative solutions for various industries, including electronics and automotive sectors. With a commitment to research and development, Ohkuchi Materials aims to enhance material performance and sustainability, contributing to technological advancements and environmental stewardship. Their expertise encompasses a range of material sciences, positioning them as a key player in the materials industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

18 Patents

#5 in Kagoshima

#3,123 in Japan

#34,217 in the World

Kagoshima, Japan

Ohkuchi Materials Co., Ltd.

Forward Citations = 11

13 inventors:

Kaoru Hishiki (12 out of 15 patents)

Keiichi Otaki (7 out of 8 patents)

Kotaro Tomeoka (7 out of 7 patents)

4. Hidehiko Sasaki (7 out of 7 patents)

5. Ichinori Iidani (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ohkuchi Materials Co., Ltd.. Retrieved from https://idiyas.com/company/ohkuchi-materials-company

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

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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