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For the Inventor, By the Inventor

Kanagawa, Japan

Tetsuo Nishigaki

This inventor holds 15 USPTO granted patents, primarily in Audio-Video Technology. Top assignee: Sony Corporation. Active years: 1993-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuo Nishigaki. Retrieved from https://idiyas.com/inventor/tetsuo-nishigaki

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

Calculating rank
USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 9

Forward Citations = 456(Granted Patents)


Company Filing History:

goldMedal15 out of 58,150 
 
Sony Corporation
 patents

Years Active: 1993-2002

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Areas of Expertise:
Video Tape Recorder
Broadcasting Signal Receiver
AV Data Base
Recording Management
Remote Controller
Character Generation
Programming Schedule
Magnetic Recording
Control Apparatus
Reproducing Apparatus
15 patents (USPTO):Explore Patents
1. 6424790 - Video tape recorder having control head upstream of erase head (2002-07-23),
2. 6341047 - AV data base for VTR (2002-01-22),
3. 5907446 - Video tape recorder for recording management data on video tape (1999-05-25),
4. 5907365 - Television device (1999-05-25),
5. 5900912 - Broadcasting signal receiver (1999-05-04),
6. 5825968 - Apparatus for controlling a record operation based on a copy inhibiting (1998-10-20),
7. 5812209 - Television device (1998-09-22),
8. 5745640 - AV data base for VTR (1998-04-28),
9. 5585820 - Apparatus for and method of generating characters (1996-12-17),
10. 5557422 - Recording method and apparatus for programming a recording schedule (1996-09-17),
11. 5519457 - Remote controller apparatus and an audio-video combination system using (1996-05-21),
12. 5438325 - Remote controller apparatus and an audio-video combination system using (1995-08-01),
13. 5379153 - Recording and reproducing apparatus having program information (1995-01-03),
14. 5361173 - Devices for controlling recording and/or reproducing apparatus utilizing (1994-11-01),
15. 5206738 - Magnetic recording apparatus having a means for determining recording (1993-04-27),

Title: Tetsuo Nishigaki: Innovator in Video Tape Recording Technology

Introduction

Tetsuo Nishigaki is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of video tape recording technology, holding a total of 15 patents. His innovative work has greatly influenced the way recording and reproducing apparatuses function.

Latest Patents

Among his latest patents is a video tape recorder featuring a control head positioned upstream of the erase head. This invention allows for a management database to be recorded on the recording tracks alongside the program, forming a management database recording field. The management data can be reproduced when the recording medium is loaded into the recording and reproducing apparatus, effectively managing each program recorded on the tracks. Additionally, he has developed an AV database for video tape recorders, which similarly records management data on various tracks to enhance program management.

Career Highlights

Tetsuo Nishigaki has had a distinguished career at Sony Corporation, where he has been instrumental in advancing video recording technologies. His work has not only improved the functionality of video tape recorders but has also paved the way for future innovations in the industry.

Collaborations

Throughout his career, Nishigaki has collaborated with notable colleagues, including Kiyoshi Ota and Toshiyuki Ishii. These partnerships have contributed to the successful development of various technologies in the field.

Conclusion

Tetsuo Nishigaki's contributions to video tape recording technology have established him as a key figure in the industry. His innovative patents and collaborative efforts continue to influence the evolution of recording technologies.

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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