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For the Inventor, By the Inventor

Tokyo, Japan

Sachio Ishioka

This inventor holds 22 USPTO granted patents, primarily in Photoelectric Devices. Top assignees: Hitachi, Ltd., Nippon Hoso' Kyokai, Hitachi, Ltd. & Nippon Hoso Kasai. Active years: 1976-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sachio Ishioka. Retrieved from https://idiyas.com/inventor/sachio-ishioka

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

USPTO Granted Patents = 22

% Patents Active = 100.0

Average Co-Inventor Count = 7.5

ph-index = 9

Forward Citations = 352(Granted Patents)


Location History:

  • Tokyo, JA (1976)
  • Tokyo, JP (1978 - 1986)
  • Toshima, JP (1987 - 1989)
  • Burlingame, CA (US) (1989 - 1993)

Company Filing History:

goldMedal20 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal5 out of 382 
 
Nippon Hoso' Kyokai
 patents
bronzeMedal1 out of 1 
 
Hitachi, Ltd. & Nippon Hoso Kasai
 patent
4. 1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1976-1993

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Areas of Expertise:
Photoconductive Imaging Apparatus
Photoelectric Conversion Device
Light-Detecting Device
Image Pickup Tube
Photosensor
Electrophotographic Member
Amorphous Semiconductor
Light Sensitive Screen
Epitaxial Growth
Vacuum Deposition
Avalanche Effect
Impurity Concentration Gradient
22 patents (USPTO):Explore Patents
1. 5233265 - Photoconductive imaging apparatus (1993-08-03),
2. 5101255 - Amorphous photoelectric conversion device with avalanche (1992-03-31),
3. 4980736 - Electric conversion device (1990-12-25),
4. 4952839 - Photoconductive device and method of operating the same (1990-08-28),
5. 4900975 - Target of image pickup tube having an amorphous semiconductor laminate (1990-02-13),
6. 4888521 - Photoconductive device and method of operating the same (1989-12-19),
7. 4884011 - Light-detecting device (1989-11-28),
8. 4829345 - Electronic device having light transmission system (1989-05-09),
9. 4636682 - Image pickup tube (1987-01-13),
10. 4626885 - Photosensor having impurity concentration gradient (1986-12-02),
11. 4609846 - Image pick-up tube having collector and balance electrodes (1986-09-02),
12. 4564784 - Reduced degradation, high resolution image pickup tube (1986-01-14),
13. 4556817 - Photoelectric conversion apparatus (1985-12-03),
14. 4554478 - Photoelectric conversion element (1985-11-19),
15. 4419604 - Light sensitive screen (1983-12-06),

Title: The Visionary Inventor: Sachio Ishioka's Journey of Innovation

Introduction:

Sachio Ishioka is renowned in the global tech community for his relentless pursuit of innovation and passion for creating transformative technologies. His visionary approach has inspired future generations of inventors worldwide.

Latest Patents:

Ishioka's latest patents showcase his pioneering work in technology, particularly in the field of photoconductive imaging apparatus and amorphous photoelectric conversion devices with avalanche effects. These patents demonstrate his ability to push the boundaries of what is possible in photoconductive devices.

Career Highlights:

With an impressive portfolio of 22 patents, Ishioka's contributions have made a significant impact on the tech industry. His work at companies like Hitachi Co., Ltd and Nippon Hoso Kyokai has solidified his reputation as a visionary inventor.

Collaborations:

Throughout his career, Ishioka has collaborated with esteemed colleagues such as Tadaaki Hirai and Yukio Takasaki. These collaborations have led to groundbreaking innovations and the development of cutting-edge technologies in the field of photoelectric conversion.

Conclusion:

Sachio Ishioka's dedication to innovation and his pioneering spirit continue to shape the future of technology. His legacy as a visionary inventor will inspire inventors around the world to think outside the box and create transformative technologies that have a lasting impact on society.

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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