IDiyas

For the Inventor, By the Inventor

Hitachi, Japan

Hidekazu Matsumoto

USPTO Granted Patents = 13

Average Co-Inventor Count = 5.8

ph-index = 12

Forward Citations = 571(Granted Patents)


Company Filing History:

goldMedal13 out of 42,485 
 
Hitachi, Ltd.
 patents
silverMedal8 out of 162 
 
Hitachi Engineering Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1984-1992

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13 patents (USPTO):Explore Patents
1. 5146569 - System for storing restart address of microprogram, determining the (1992-09-08),
2. 5003458 - Suspended instruction restart processing system based on a checkpoint (1991-03-26),
3. 4896258 - Data processor provided with instructions which refer to both tagged and (1990-01-23),
4. 4839846 - Apparatus for performing floating point arithmetic operations and (1989-06-13),
5. 4811269 - Bit slice multiplication circuit (1989-03-07),
6. 4807113 - Microprogrammed control data processing apparatus in which operand (1989-02-21),
7. 4644490 - Floating point data adder (1987-02-17),
8. 4530050 - Central processing unit for executing instructions of variable length (1985-07-16),
9. 4523276 - Input/output control device with memory device for storing (1985-06-11),
10. 4523272 - Bus selection control in a data transmission apparatus for a (1985-06-11),
11. 4520441 - Data processing system (1985-05-28),
12. 4481573 - Shared virtual address translation unit for a multiprocessor system (1984-11-06),
13. 4454578 - Data processing unit with pipelined operands (1984-06-12),

Title: The Innovations of Hidekazu Matsumoto

Introduction

Hidekazu Matsumoto is a distinguished inventor based in Hitachi, Japan, known for his contributions to data processing technology. With a repertoire of 13 patents to his name, Matsumoto's work primarily focuses on enhancing the efficiency of microprogram-controlled data processing apparatus.

Latest Patents

Matsumoto's recent patents include a groundbreaking system for storing the restart address of microprograms. His method and apparatus for instruction restart processing involve saving the internal information of a data processing apparatus when instruction execution is suspended. This saved information is later recovered after the cause of suspension is removed. His system efficiently utilizes a checkpoint address associated with the currently executing microprogram, ensuring a seamless restart of instruction execution. In cases where a checkpoint address is not stored after the suspension cause removal process, the execution resumes by reading the suspended instruction from the main storage.

Career Highlights

Throughout his career, Matsumoto has worked with leading companies such as Hitachi, Ltd. and Hitachi Engineering Co., Ltd. His tenure at these respected organizations has allowed him to pioneer significant advancements in microprocessing technologies and instruction handling systems.

Collaborations

Matsumoto has collaborated with notable colleagues, including Tadaaki Bandoh and Jushi Ide. These collaborations have fostered a creative environment that has contributed to his innovative solutions in the realm of data processing.

Conclusion

Hidekazu Matsumoto's innovative approach to data processing technology positions him as a key figure in the field. With his substantial number of patents and collaboration with esteemed colleagues and companies, Matsumoto continues to influence and inspire advancements in microprogram-controlled data processing systems.

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