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For the Inventor, By the Inventor

Kanagawa, Japan

Kaichi Tatsuzawa

This inventor holds 12 USPTO granted patents. Top assignee: Sony Corporation. Active years: 1979-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kaichi Tatsuzawa. Retrieved from https://idiyas.com/inventor/kaichi-tatsuzawa

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 = 91.7

Average Co-Inventor Count = 1.9

ph-index = 8

Forward Citations = 436(Granted Patents)


Location History:

  • Yokohama, JP (1979 - 1982)
  • Kanagawa, JP (1988 - 2004)

Company Filing History:

goldMedal12 out of 58,145 
 
Sony Corporation
 patents

Years Active: 1979-2004

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12 patents (USPTO):Explore Patents
1. 6697100 - SOLID-PICTORIAL VIDEO SIGNAL GENERATING APPARATUS, SOLID-PICTORIAL VIDEO SIGNAL TRANSMITTING APPARATUS, SOLID-PICTORIAL VIDEO SIGNAL RECEIVING APPARATUS AND SOLID-PICTORIAL VIDEO SIGNAL TRANSMISSION SWITCHING APPARATUS (2004-02-24),
2. 6441844 - SOLID-PICTORIAL VIDEO SIGNAL GENERATING APPARATUS, SOLID-PICTORIAL VIDEO SIGNAL TRANSMITTING APPARATUS, SOLID-PICTORIAL VIDEO SIGNAL RECEIVING APPARATUS AND SOLID-PICTORIAL VIDEO SIGNAL TRANSMISSION SWITCHING APPARATUS (2002-08-27),
3. 5771216 - Photomagnetic recording device and photomagnetic reproducing device (1998-06-23),
4. 5640379 - Photomagnetic recording device and photomagnetic reproducing device (1997-06-17),
5. 5450139 - Apparatus for transmitting video signals comprising a memory backup (1995-09-12),
6. 5142537 - Video signal processing circuit (1992-08-25),
7. 4914527 - Recording and reproducing digital video and audio signals together with (1990-04-03),
8. 4802032 - Servo for VTR drum motor with external reference signal phase modulation (1989-01-31),
9. 4751589 - Method and apparatus for reproducing recorded video signal (1988-06-14),
10. 4742519 - Apparatus for decoding error correcting code (1988-05-03),
11. 4318119 - Continuous carrier wave generating circuit (1982-03-02),
12. 4163258 - Noise reduction system (1979-07-31),

Title: Kaichi Tatsuzawa: Innovator in Solid-Pictorial Video Technology

Introduction

Kaichi Tatsuzawa is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of video technology, particularly in the development of solid-pictorial video signal systems. With a total of 12 patents to his name, Tatsuzawa's work has paved the way for advancements in video signal generation and transmission.

Latest Patents

Tatsuzawa's latest patents include the following innovations: SOLID-PICTORIAL VIDEO SIGNAL GENERATING APPARATUS, SOLID-PICTORIAL VIDEO SIGNAL TRANSMITTING APPARATUS, SOLID-PICTORIAL VIDEO SIGNAL RECEIVING APPARATUS, and SOLID-PICTORIAL VIDEO SIGNAL TRANSMISSION SWITCHING APPARATUS. These inventions utilize left and right video cameras positioned on either side of a front video camera to generate solid-pictorial video signals. The system employs simplified video cameras that do not have zoom functions, allowing for cost-effective signal generation. By focusing on solid information from the main picture, the technology reduces the amount of data transmitted, enhancing efficiency.

Career Highlights

Kaichi Tatsuzawa is currently associated with Sony Corporation, where he continues to innovate in the realm of video technology. His work has been instrumental in developing systems that leverage motion-compensated DCT encoding processes to extract essential video signals. This approach not only improves the quality of video transmission but also reduces costs associated with video signal generation.

Collaborations

Tatsuzawa has collaborated with notable colleagues, including Hiroki Kotani and Takao Abe. Their combined expertise has contributed to the successful development of advanced video technologies.

Conclusion

Kaichi Tatsuzawa's contributions to solid-pictorial video technology exemplify the impact of innovative thinking in the field of video signal processing. His patents reflect a commitment to enhancing video transmission efficiency while maintaining quality.

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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