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Sega Enterprises, Ltd.

USPTO Granted Patents = 264

CIPO Patents = 4

Trademarks = 6

Forward Citations = 8,625

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308 inventors (with patents filed for the assignee):

Akitoshi Oikawa (22 out of 25 patents)

Kenji Tosaki (12 out of 18 patents)

Johnny D Couch (12 out of 13 patents)

4. Atsushi Kitahara (11 out of 12 patents)

5. Seisuke Morioka (11 out of 13 patents)

6. Toshinori Date (9 out of 9 patents)

7. Keisuke Yasui (8 out of 11 patents)

8. Yutaka Okunoki (8 out of 8 patents)

9. Sarah M Richmond (8 out of 9 patents)

10. Atsunori Himoto (7 out of 10 patents)

11. Toshinori Asai (7 out of 9 patents)

12. Gregory H Hunter (7 out of 25 patents)

13. John D Gundlach (7 out of 10 patents)

14. Ira L Velinsky (7 out of 8 patents)

15. Yusuke Shimizu (6 out of 67 patents)

Core Competencies:

Controller Expansion Unit

Game Apparatus

Image Processing Method

Polygon Image Formation

Data Processing

Voice Recognition

Stereoscopic Display

Game Execution Method

Memory Device

Information Processing System

Game Score Evaluation

Animation Data Storage

264 patents: Sort by Forward Citations

1. 7488254 - Controller and expansion unit for controller (2009-02-10),

2. 7473180 - Controller and expansion unit for controller (2009-01-06),

3. 7431651 - Data processing method (2008-10-07),

4. 7331856 - Game apparatus, input device used in game apparatus and storage medium (2008-02-19),

5. 7273414 - Race game device (2007-09-25),

6. 7081051 - Controller and expansion unit for controller (2006-07-25),

7. 6900804 - Method of forming polygon image and image processing apparatus using the same (2005-05-31),

8. 6878058 - Image processor and game device with image processor (2005-04-12),

9. 6839848 - Information processing system and peripheral apparatus (2005-01-04),

10. 6786826 - Memory device, controller, and electronic device (2004-09-07),

11. 6769987 - Game apparatus, game displaying method, game score evaluating method, and recording media recorded with game program (2004-08-03),

12. 6752719 - Controller and expansion unit for controller (2004-06-22),

13. 6744430 - Image processing method and its apparatus (2004-06-01),

14. 6734854 - Image processing method and storage medium for storing image processing programs (2004-05-11),

15. 6714690 - Image processing device having matrix computing units (2004-03-30),

SEGA Enterprises, Ltd. is a multinational video game developer and publisher. Established in 1960 in Japan, SEGA has since grown to become one of the leading gaming companies in the world. They are known for iconic game franchises such as Sonic the Hedgehog, Yakuza, and Total War. With a strong focus on innovation, SEGA continues to create and deliver exciting gaming experiences for players across various platforms.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

264 Patents

#260 in Tokyo

#563 in Japan

#3,216 in the World

Sega Enterprises, Ltd.

Forward Citations = 8,625

308 inventors:

Akitoshi Oikawa (22 out of 25 patents)

Kenji Tosaki (12 out of 18 patents)

Johnny D Couch (12 out of 13 patents)

4. Atsushi Kitahara (11 out of 12 patents)

5. Seisuke Morioka (11 out of 13 patents)

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