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For the Inventor, By the Inventor

Tokyo, Japan

Oki Electric Co., Ltd.


USPTO Granted Patents = 14

Forward Citations = 356

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37 inventors (with patents filed for the assignee):

goldMedal Minoru Mizutani (2 out of 21 patents)

silverMedal Kuniharu Hayashi (2 out of 15 patents)

bronzeMedal Shinji Kawaguchi (1 out of 5 patents)

4.  Tetsuya Tanabe (1 out of 51 patents)

5.  Hideyuki Kobayashi (1 out of 23 patents)

6.  Yasuhiro Tanaka (1 out of 63 patents)

7.  Toshiyuki Sato (1 out of 23 patents)

8.  Osamu Ueno (1 out of 3 patents)

9.  Takaaki Akiyama (1 out of 9 patents)

10.  Atsushi Fukasawa (1 out of 21 patents)

11.  Satoru Tanoi (1 out of 37 patents)

12.  Akira Tanaka (1 out of 43 patents)

13.  Masanori Maekawa (1 out of 12 patents)

14.  Teruhiro Harada (1 out of 17 patents)

15.  Naoji Akutsu (1 out of 17 patents)


14 patents:

1. 7046301 - Vertical synchronous signal detection circuit (2006-05-16),
2. 6131038 - Method of and apparatus for selecting a channel in a base station by (2000-10-10),
3. 5923994 - Selective oxidation process (1999-07-13),
4. 5781466 - Semiconductor memory with built-in cache (1998-07-14),
5. 5693139 - Growth of doped semiconductor monolayers (1997-12-02),
6. 5260616 - Permanent magnet type stepping motor (1993-11-09),
7. 5200763 - Printer with an LED print head having means for setting data about the (1993-04-06),
8. 5126688 - Power amplifying apparatus for wireless transmitter (1992-06-30),
9. 4929102 - Ribbon protector including electro-conductive elements and platen gap (1990-05-29),
10. 4922736 - Key device incorporating an electronic circuit (1990-05-08),
11. 4899309 - Current sense circuit for a ROM system (1990-02-06),
12. 4663736 - File deletion system in a file unit (1987-05-05),
13. 4660163 - Adaptive digital filter (1987-04-21),
14. D252752 - Telephone set (1979-08-28),
Company Overview
Oki Electric Co., Ltd. is a prominent technology company based in Tokyo, Japan, specializing in a diverse range of sectors including telecommunications, information technology, and printing solutions. The company is known for its innovative developments in network systems, including cloud computing and IoT applications, as well as high-performance printers and multifunction devices. Oki Electric is committed to advancing technology that enhances communication and operational efficiency across various industries, contributing to a connected and sustainable future.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

14 Patents

#1,597 in Tokyo

#3,580 in Japan

#42,249 in the World

Tokyo, JP
Tokyo, Japan

Oki Electric Co., Ltd.

Forward Citations = 356

37 inventors:

goldMedal Minoru Mizutani (2 out of 21 patents)

silverMedal Kuniharu Hayashi (2 out of 15 patents)

bronzeMedal Shinji Kawaguchi (1 out of 5 patents)

4.  Tetsuya Tanabe (1 out of 51 patents)

5.  Hideyuki Kobayashi (1 out of 23 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Oki Electric Co., Ltd.. Retrieved from https://idiyas.com/company/oki-electric-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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