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For the Inventor, By the Inventor

Yokohama, Japan

Kazumasa Hamaguchi

This inventor holds 17 USPTO granted patents, primarily in Information Processing. Top assignee: Canon Kabushiki Kaisha. Active years: 1994-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazumasa Hamaguchi. Retrieved from https://idiyas.com/inventor/kazumasa-hamaguchi

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

Calculating rank
USPTO Granted Patents = 17

% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 11

Forward Citations = 276(Granted Patents)


Location History:

  • Machida, JP (1995)
  • Kawasaki, JP (1994 - 1998)
  • Yokohama, JP (1996 - 2000)

Company Filing History:

goldMedal17 out of 93,136 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1994-2000

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Areas of Expertise:
Cache Coherency
Parallel Processing
Memory Access Control
Optical Communication
Multiprocessor Systems
Information Processing Device
Node Architecture
Signal Multiplexing
Data Consistency
Network Systems
Data Arbitration
17 patents (USPTO):Explore Patents
1. 6138217 - Method and apparatus for cache coherency in an interconnecting network (2000-10-24),
2. 6078337 - Maintaining consistency of cache memory data by arbitrating use of a (2000-06-20),
3. 6021472 - Information processing device and control method thereof (2000-02-01),
4. 6009490 - System having plurality of nodes with respective memories and an arbiter (1999-12-28),
5. 5995751 - Information processing apparatus (1999-11-30),
6. 5933261 - Information processing method and system (1999-08-03),
7. 5923339 - Higher-speed parallel processing (1999-07-13),
8. 5860110 - Conference maintenance method for cache memories in multi-processor (1999-01-12),
9. 5802295 - Information processing method and system therefor (1998-09-01),
10. 5737568 - Method and apparatus to control cache memory in multiprocessor system (1998-04-07),
11. 5604748 - Information processing apparatus for transmitting information among a (1997-02-18),
12. 5602663 - Information processing apparatus for multiplex transmission of signal (1997-02-11),
13. 5577218 - Memory access control method wherein block access is performed as a (1996-11-19),
14. 5561542 - Optical communication system and method for performing communication (1996-10-01),
15. 5386546 - Block substitution method in a cache memory of a multiprocessor system (1995-01-31),

Title: **Innovative Contributions of Kazumasa Hamaguchi**

Introduction

Kazumasa Hamaguchi, an inventive force located in Yokohama, Japan, holds an impressive portfolio of 17 patents. His work focuses on enhancing data processing systems, particularly in network interconnections.

Latest Patents

Among his notable patents, Kazumasa has developed efficient methods and apparatuses for cache coherency in data processing systems. One significant invention involves a network where multiple nodes connect via a bus. This system employs tag information with state data to manage whether a data block is shared among nodes. When a write-access occurs on a data block marked as INTERNODE-SHARED, the system promptly requests the invalidation of the data block in the other node, thereby ensuring data integrity across the network.

Another recent patent highlights a novel approach to maintain consistency in cache memory data through arbitration techniques. Utilizing a light wavelength multiplexing connection, this system allows multiple nodes to communicate simultaneously using various wavelengths. The nodes can relay information to an arbiter, which manages the data transfer and ensures that each node updates its cache appropriately based on the data received.

Career Highlights

Kazumasa Hamaguchi has made substantial contributions to Canon Inc., where he continues to innovate in the realm of data processing technologies. His patents reflect a deep understanding of network architectures and cache memory functionalities, making him a valuable asset to the organization.

Collaborations

Throughout his career, Kazumasa has collaborated with other skilled professionals, including Toshiyuki Fukui and Masato Kosugi. These partnerships highlight the collaborative nature of innovation in technology and emphasize the importance of teamwork in the development of cutting-edge solutions.

Conclusion

Kazumasa Hamaguchi's contributions to technology through his 17 patents showcase his expertise and innovative spirit. His work at Canon has not only advanced the field of data processing but has also paved the way for future innovations in network communication and data integrity.

Profile summary based on public USPTO records.
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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