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Kanagawa-ken, Japan

Hitachi Computer Engineering Co., Ltd.

USPTO Granted Patents = 56

Forward Citations = 1,963

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169 inventors (with patents filed for the assignee):

Tomoo Aoyama (7 out of 9 patents)

Akio Kojima (4 out of 4 patents)

Mikito Ogata (3 out of 22 patents)

4. Masato Hirai (3 out of 8 patents)

5. Hiroshi Murayama (3 out of 11 patents)

6. Fujio Wakui (3 out of 6 patents)

7. Hidenori Yamada (3 out of 3 patents)

8. Yoshihisa Tsuji (3 out of 3 patents)

9. Hirofumi Yamashita (2 out of 59 patents)

10. Kenji Matsumoto (2 out of 34 patents)

11. Shigeru Kaga (2 out of 3 patents)

12. Shinjiro Shiraki (2 out of 7 patents)

13. Toshiyuki Yamada (2 out of 4 patents)

14. Masashi Fukuda (2 out of 4 patents)

15. Hideaki Sasaki (2 out of 33 patents)

Core Competencies:

Wireless Communication

Data Transfer Control

Multiprocessor Bridge

Optical Disk Recording

File Access Control

Self Check-Out Systems

Vector Processing

Network Synchronization

Semiconductor Circuits

Computer-Integrated Manufacturing

Virtual Addressing

Error Detection

56 patents: Sort by Forward Citations

1. 6148415 - Backup switching control system and method (2000-11-14),

2. 6014406 - Frequency-hopped wireless communication system and mobile wireless (2000-01-11),

3. 5982762 - Wireless LAN system, base station device and wireless terminal device (1999-11-09),

4. 5842042 - Data transfer control method for controlling transfer of data through a (1998-11-24),

5. 5761435 - Multiprocessor bridge having storage for spanning tree operation mode (1998-06-02),

6. 5745972 - Method of producing parts/substrate assemblies (1998-05-05),

7. 5745444 - Method of controlling recording information on an optical disk using (1998-04-28),

8. 5710903 - Data processing system provided with an address translation lookaside (1998-01-20),

9. 5671354 - Method of assisting server access by use of user authentication (1997-09-23),

10. 5638012 - Write driver circuit (1997-06-10),

11. 5623607 - Data transfer control method for controlling transfer of data through a (1997-04-22),

12. 5615316 - Printing control method and apparatus (1997-03-25),

13. 5603003 - High speed file access control method and computer system including a (1997-02-11),

14. 5548724 - File server system and file access control method of the same (1996-08-20),

15. 5543607 - Self check-out system and POS system (1996-08-06),

Hitachi Computer Engineering Co., Ltd. is a subsidiary of Hitachi Ltd. specializing in providing innovative computer engineering solutions for businesses. They offer a wide range of products and services, including hardware and software development, IT consulting, and system integration. With a focus on advanced technology and quality customer service, Hitachi Computer Engineering Co., Ltd. strives to meet the diverse needs of their clients and drive success in the digital age.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

56 Patents

#10 in Kanagawa-ken

#1,567 in Japan

#12,351 in the World

Kanagawa-ken, Japan

Hitachi Computer Engineering Co., Ltd.

Forward Citations = 1,963

169 inventors:

Tomoo Aoyama (7 out of 9 patents)

Akio Kojima (4 out of 4 patents)

Mikito Ogata (3 out of 22 patents)

4. Masato Hirai (3 out of 8 patents)

5. Hiroshi Murayama (3 out of 11 patents)

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