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For the Inventor, By the Inventor

Tokyo, Japan

Toshifumi Ohsawa

This inventor holds 26 USPTO granted patents, primarily in Camera Technology. Top assignee: Canon Kabushiki Kaisha. Active years: 1987-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshifumi Ohsawa. Retrieved from https://idiyas.com/inventor/toshifumi-ohsawa

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 = 100.0

Average Co-Inventor Count = 1.1

ph-index = 7

Forward Citations = 220(Granted Patents)


Location History:

  • Kawasaki, JP (1989)
  • Kanagawa, JP (1987 - 1990)
  • Tokyo, JP (1990 - 2003)

Company Filing History:

goldMedal26 out of 92,994 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1987-2003

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Areas of Expertise:
Optical Gyro
Image Display Apparatus
Camera
Exposure Control Device
Angular Velocity Detector
Image Correcting Apparatus
Display Device
Light Measuring Circuit
Auto-Zoom Function
Voltage Adjusting Apparatus
Information Read-In Device
Film Cartridge
26 patents (USPTO):Explore Patents
1. 6654126 - Optical gyro with specific clock/calculation circuit (2003-11-25),
2. 6477332 - Electronic image display apparatus and camera having electronic image display function (2002-11-05),
3. 6470151 - Camera, image correcting apparatus, image correcting system, image correcting method, and computer program product providing the image correcting method (2002-10-22),
4. 6465771 - Angular velocity detector and apparatus having angular velocity detector (2002-10-15),
5. 6424805 - Exposure control device for use in camera (2002-07-23),
6. 6411270 - Display apparatus capable of selecting display picture or screen sizes for displaying static picture of images written in a spatial light modulator (2002-06-25),
7. 6309075 - Image display apparatus (2001-10-30),
8. 6295415 - Camera (2001-09-25),
9. 6222509 - Image display apparatus (2001-04-24),
10. 6118943 - Camera (2000-09-12),
11. 6026248 - Camera or apparatus adapted to film cartridge (2000-02-15),
12. 5815745 - Camera (1998-09-29),
13. 5666570 - Camera (1997-09-09),
14. 5572279 - Camera incorporating an auto-zoom function (1996-11-05),
15. 5557365 - Camera attached with auxiliary device (1996-09-17),

Title: **Toshifumi Ohsawa: Innovator in Optical Technologies**

Introduction

Toshifumi Ohsawa is a prominent inventor based in Tokyo, Japan, recognized for his significant contributions to optical technology. With an impressive portfolio of 26 patents, Ohsawa has established himself as a leading figure in innovation within the field of electronic imaging and angular velocity detection.

Latest Patents

Ohsawa's latest patents include technologies that represent cutting-edge advancements in optical gyroscopes and electronic image display systems. One notable patent focuses on an optical gyro with a specific clock and calculation circuit. This angular velocity detecting apparatus features a ring laser that utilizes a tapered light waveguide in an asymmetrical shape. The design allows for differing oscillation threshold values of laser beams, facilitating precise measurements of angular velocity through changes in electric current, voltage, and impedance.

Another significant patent is for an electronic image display apparatus and camera. This system is designed to capture electronic images while providing the user with information regarding the photographic films loaded in the apparatus. By utilizing an image sensor and an external memory, it ensures that users can identify which pictures were taken on specific films, enhancing the usability of cameras that handle multiple exposed or partially exposed films.

Career Highlights

Toshifumi Ohsawa is currently associated with Canon Kabushiki Kaisha, a company renowned for its innovations in imaging and information technology. His work at Canon has allowed him to leverage his expertise in optical technologies to develop products that are widely utilized across various sectors, contributing to the company's reputation for excellence in imaging solutions.

Collaborations

Throughout his career, Ohsawa has collaborated with esteemed colleagues such as Jun Terashima and Ryuichi Kobayashi. These collaborations have fostered an environment of innovation and idea exchange, leading to the development of groundbreaking technologies in optical systems.

Conclusion

Toshifumi Ohsawa's contributions to the fields of optical gyroscopes and electronic image display systems have greatly impacted the technology landscape. His extensive patent portfolio exemplifies his innovative spirit and dedication to advancing technology. As an influential inventor at Canon, Ohsawa continues to push the boundaries of optical technology, paving the way for future advancements in imaging and detection systems.

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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