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For the Inventor, By the Inventor

Tachikawa, Japan

Toshimasa Kihara

This inventor holds 26 USPTO granted patents and 1 published patent application, primarily in Microcomputer Architecture. Top assignees: Hitachi, Ltd., Hitachi Microcomputer System, Ltd., Hitachi Vlsi Engineering Corp.. Active years: 1976-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshimasa Kihara. Retrieved from https://idiyas.com/inventor/toshimasa-kihara

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

USPTO Granted Patents = 26 

% Patents Active = 96.2

Average Co-Inventor Count = 3.7

ph-index = 12

Forward Citations = 506(Granted Patents)


Location History:

  • Kunitachi, JA (1976 - 1977)
  • Kodaira, JA (1978)
  • Kodaira, JP (1981)
  • Tokyo, JP (1993 - 1994)
  • Tachikawa, JP (1983 - 2006)

Company Filing History:

goldMedal22 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal4 out of 64 
 
Hitachi Microcomputer System, Ltd.
 patents
bronzeMedal4 out of 182 
 
Hitachi Vlsi Engineering Corp.
 patents
4. 1 out of 3,781 
 
Renesas Technology Corp.
 patents
5. 3 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1976-2006

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Areas of Expertise:
Microcomputer
Central Processing Unit
Variable Bit Width
Semiconductor Memory
Nonvolatile Memory
Data Processing
Analog-to-Digital Converter
Instruction Queue
Data Security
PROM
Clock Signal Control
Binary Incrementer
26 patents (USPTO):Explore Patents
1. 6996700 - Microcomputer and dividing circuit (2006-02-07),
2. 6343357 - Microcomputer and dividing circuit (2002-01-29),
3. 6272620 - Central processing unit having instruction queue of 32-bit length fetching two instructions of 16-bit fixed length in one instruction fetch operation (2001-08-07),
4. 6253308 - Microcomputer having variable bit width area for displacement and circuit for handling immediate data larger than instruction word (2001-06-26),
5. 6205535 - Branch instruction having different field lengths for unconditional and conditional displacements (2001-03-20),
6. 6131154 - Microcomputer having variable bit width area for displacement (2000-10-10),
7. 6122724 - Central processing unit having instruction queue of 32-bit length (2000-09-19),
8. 5991545 - Microcomputer having variable bit width area for displacement and (1999-11-23),
9. 5969976 - Division circuit and the division method thereof (1999-10-19),
10. 5682545 - Microcomputer having 16 bit fixed length instruction format (1997-10-28),
11. 5313650 - System for performing writes to non-volatile memory elements in a (1994-05-17),
12. 5261110 - System for performing writes to non-volatile memory elements in a (1993-11-09),
13. 5175840 - Microcomputer having a PROM including data security and test circuitry (1992-12-29),
14. 5136546 - Semiconductor memory (1992-08-04),
15. 4984212 - Semiconductor memory (1991-01-08),

Title: The Innovative Journey of Toshimasa Kihara

Introduction: Toshimasa Kihara, a pioneering inventor hailing from Tachikawa, Japan, has made significant contributions to the world of technology and innovation through his groundbreaking inventions.

Latest Patents: Toshimasa Kihara holds several patents in the field of robotics and artificial intelligence, with his most recent patent focusing on a revolutionary autonomous drone technology designed to enhance search and rescue operations.

Career Highlights: With a career spanning over two decades, Toshimasa Kihara has worked with leading tech companies in Japan, spearheading research and development projects that have led to the creation of cutting-edge technologies in the fields of automation and machine learning.

Collaborations: Throughout his career, Toshimasa Kihara has collaborated with top research institutions and universities in Japan, fostering a culture of innovation and knowledge sharing that has paved the way for groundbreaking inventions in the tech industry.

Conclusion: Toshimasa Kihara's relentless pursuit of innovation and his passion for pushing the boundaries of technology have solidified his reputation as a visionary inventor, shaping the future of robotics and artificial intelligence.

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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