For the Inventor, By the Inventor

Enter assignee name

Yokohama, Japan

Tokyo Electron Device Limited

USPTO Granted Patents = 16

% Expired Patents = 25.0

Trademarks = 2

Forward Citations = 371

Loading Chart...

Loading Chart...

14 inventors (with patents filed for the assignee):

Seiji Hiraka (3 out of 3 patents)

Yasuhiro Nakamura (2 out of 87 patents)

Takeo Yoshii (2 out of 2 patents)

4. Masahiko Shimizu (2 out of 4 patents)

5. Tsuyoshi Takahashi (2 out of 2 patents)

6. Shuichi Kikuchi (2 out of 2 patents)

7. Toshihiko Chiba (2 out of 2 patents)

8. Ryo Nakayama (1 out of 5 patents)

9. Takayoshi Narita (1 out of 1 patent)

10. Teruhiro Kawashima (1 out of 1 patent)

11. Satoshi Era (1 out of 1 patent)

12. Kazunori Asada (1 out of 1 patent)

13. Isamu Iwamoto (1 out of 1 patent)

14. Toshiya Kobayashi (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 11551112 - Information processing apparatus and storage medium (2023-01-10),

2. 7536109 - Optical network system and device, and method for controlling optical network and device (2009-05-19),

3. 7242632 - Memory device, memory managing method and program (2007-07-10),

4. 7191296 - Data writing apparatus, data writing method, and program (2007-03-13),

5. 7007140 - Storage device, storage device controlling method, and program (2006-02-28),

6. 6804730 - Access control device, access control method, recording medium, and computer data signal for controlling allowance of access to storage area using certification data (2004-10-12),

7. 6687783 - Access apparatus and method for accessing a plurality of storage device having different characteristics (2004-02-03),

8. 6490685 - Storage device having testing function and memory testing method (2002-12-03),

9. 6477632 - Storage device and accessing method (2002-11-05),

10. 6477616 - Storage device, storage system, memory management method, recording medium, and computer data signal (2002-11-05),

11. 6457126 - Storage device, an encrypting/decrypting device and method of accessing a non-volatile memory (2002-09-24),

12. 6411552 - Data processing system, block erasing type memory device and memory medium storing program for controlling memory device (2002-06-25),

13. 6401166 - Data processing system, block erasing type memory device and memory storing program for controlling memory device (2002-06-04),

14. 6226202 - Flash memory card including CIS information (2001-05-01),

15. 6209097 - Content protection method and content protection system (2001-03-27),

Company Overview

Tokyo Electron Device Limited is a prominent player in the semiconductor and electronics industry, specializing in the development and manufacturing of advanced electronic components and systems. The company focuses on providing innovative solutions for various applications, including telecommunications, automotive, and industrial sectors. With a strong emphasis on research and development, Tokyo Electron Device Limited aims to enhance the performance and efficiency of electronic devices, contributing to the advancement of technology on a global scale.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

16 Patents

#62 in Yokohama

#3,339 in Japan

#37,831 in the World

Yokohama, Japan

Tokyo Electron Device Limited

Forward Citations = 371

14 inventors:

Seiji Hiraka (3 out of 3 patents)

Yasuhiro Nakamura (2 out of 87 patents)

Takeo Yoshii (2 out of 2 patents)

4. Masahiko Shimizu (2 out of 4 patents)

5. Tsuyoshi Takahashi (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tokyo Electron Device Limited. Retrieved from https://idiyas.com/company/tokyo-electron-device

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]

Loading…