Company Filing History:

15 out of 192

Copal Company Limited

patents

2 out of 1,252

Konishiroku Photo Industry Co., Ltd.

patents

1 out of 3

Kabushiki Kaisha Copal

patents

where one patent can have more than one assignee

Years Active: 1977-1986

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4609275 - Exposure control unit (1986-09-02),

2. 4502769 - Quick-return mirror driving mechanism for single-lens reflex cameras (1985-03-05),

3. 4478500 - Exposure controlling device adapted to cameras using interchangeable (1984-10-23),

4. 4358191 - Exposure rate controlling mechanism for camera (1982-11-09),

5. 4222652 - Electric shutter for cameras (1980-09-16),

6. 4210393 - Device for automatically controlling diaphragm aperture (1980-07-01),

7. 4200375 - Exposure controlling circuit for electric shutter (1980-04-29),

8. 4193673 - Digital shutter control circuit (1980-03-18),

9. 4192595 - Electroflash controlling circuit including a delay circuit for (1980-03-11),

10. 4190344 - Driving circuit for camera shutters (1980-02-26),

11. 4161764 - Exposure controlling circuit for electric shutters (1979-07-17),

12. 4143958 - Controlling circuit for electric shutters (1979-03-13),

13. 4139282 - Device for indicating fading operation (1979-02-13),

14. 4134653 - Servoamplifier in an automatic diaphragm controlling device of a camera (1979-01-16),

15. 4129370 - Controlling circuit for electric shutters (1978-12-12),

Title: The Innovative Mind of Yasuo Ishiguro

Introduction: Yasuo Ishiguro is a pioneering inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yasuo Ishiguro holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With a career spanning over two decades, Ishiguro has worked with leading research institutions and tech companies in Japan, spearheading projects that have revolutionized various industries. His dedication to pushing the boundaries of what is possible has earned him recognition as a visionary in the field of invention.

Collaborations: Throughout his career, Yasuo Ishiguro has collaborated with top engineers, scientists, and inventors from around the world, fostering a culture of innovation and knowledge-sharing. His ability to work effectively in multidisciplinary teams has led to the development of cutting-edge technologies with real-world applications.

Conclusion: Yasuo Ishiguro's passion for innovation, coupled with his relentless drive to create solutions for the future, cements his legacy as a trailblazing inventor whose work continues to inspire generations of inventors worldwide.

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