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For the Inventor, By the Inventor

Hadano, Japan

Katsumi Takeda

This inventor holds 12 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Video Eng. Inc.. Active years: 1990-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsumi Takeda. Retrieved from https://idiyas.com/inventor/katsumi-takeda

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

USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 4.1

ph-index = 7

Forward Citations = 183(Granted Patents)


Location History:

  • Yokohama, JP (1991 - 1997)
  • Hadano, JP (1990 - 1998)

Company Filing History:

goldMedal12 out of 42,726 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 9 
 
Hitachi Video Eng. Inc.
 patents
where one patent can have more than one assignee

Years Active: 1990-1998

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12 patents (USPTO):Explore Patents
1. 5729723 - Data processing unit (1998-03-17),
2. 5696792 - Digital radiocommunication terminal (1997-12-09),
3. 5581721 - Data processing unit which can access more registers than the registers (1996-12-03),
4. 5499145 - Magnetic recording apparatus with capability of recording signals of a (1996-03-12),
5. 5446841 - Multi-processor system having shared memory for storing the (1995-08-29),
6. 5341484 - Virtual machine system having an extended storage (1994-08-23),
7. 5323273 - Audio signal recording and playback apparatus of magnetic recording and (1994-06-21),
8. 5307495 - Multiprocessor system statically dividing processors into groups (1994-04-26),
9. 5144609 - Apparatus for tracking an optical disc (1992-09-01),
10. 5077716 - Optical recording and reproducing system having an accurate high-speed (1991-12-31),
11. 5070444 - Storage system (1991-12-03),
12. 4949244 - Storage system (1990-08-14),

Title: Innovations of Katsumi Takeda

Introduction

Katsumi Takeda is a prominent inventor based in Hadano, Japan. He has made significant contributions to the field of data processing and digital communication technologies. With a total of 12 patents to his name, Takeda's work has had a lasting impact on the industry.

Latest Patents

One of his latest patents is a data processing unit designed to access a greater number of registers than those addressable by an instruction. This innovation allows for high-speed execution of programs by incorporating a larger number of floating point registers. The data processing unit includes a window start pointer register and a conversion circuit that adapts the floating point register number based on the window start pointer register's value. Another notable patent is for a digital radiocommunication terminal, which reduces the number of oscillators required for construction. This terminal utilizes an N-phase-shift-keyed signal for information transmission, optimizing the circuit size and efficiency.

Career Highlights

Throughout his career, Katsumi Takeda has worked with notable companies such as Hitachi, Ltd. and Hitachi Video Engineering Inc. His experience in these organizations has contributed to his expertise in developing advanced technological solutions.

Collaborations

Takeda has collaborated with esteemed colleagues, including Hidenori Umeno and Kiyoshi Ogawa. Their joint efforts have furthered innovations in their respective fields.

Conclusion

Katsumi Takeda's contributions to technology through his patents and collaborations highlight his role as a leading inventor in Japan. His work continues to influence advancements in data processing and digital communication.

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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