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For the Inventor, By the Inventor

Yokohama, Japan

Shigeki Yamada

This inventor holds 22 USPTO granted patents, primarily in Image Processing. Top assignees: Canon Kabushiki Kaisha, Hitachi, Ltd., Fujitsu Corporation. Active years: 1979-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeki Yamada. Retrieved from https://idiyas.com/inventor/shigeki-yamada

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 = 86.4

Average Co-Inventor Count = 2.2

ph-index = 12

Forward Citations = 572(Granted Patents)


Location History:

  • Katsuta, JP (1981 - 1986)
  • Kawasaki, JP (1994)
  • Tokorozawa, JP (1979 - 2000)
  • Yokohama, JP (1989 - 2004)
  • Ibaraki, JP (2006)
  • Kanagawa, JP (2001 - 2008)
  • Tokyo, JP (2010)
  • Hitachinaka, JP (2007 - 2014)

Company Filing History:

goldMedal13 out of 93,085 
 
Canon Kabushiki Kaisha
 patents
silverMedal5 out of 42,740 
 
Hitachi, Ltd.
 patents
bronzeMedal2 out of 39,378 
 
Fujitsu Corporation
 patents
4. 2 out of 248 
 
Hitachi Car Engineering Co., Ltd.
 patents
5. 2 out of 5,300 
 
Nippon Telegraph and Telephone Corporation
 patents
6. 1 out of 2,028 
 
Hitachi Automotive Systems, Ltd.
 patents
7. 1 out of 1,038 
 
Nippon Electric Co., Ltd.
 patents
8. 1 out of 522 
 
Nippon Telegraph and Telephone Public Corporation
 patents
9. 1 out of 4,980 
 
Oki Electric Industry Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1979-2014

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Areas of Expertise:
Injector Drive Circuit
Image Reading System
Electronically Controlled Actuator
Position Control Method
Image Editing Apparatus
Communication Apparatus
Telecommunication Network
Digital Signal Transmission
Creative Image Processing
Film Image Reading
Microprogram Control Device
Rotor for Alternators
22 patents (USPTO):Explore Patents
1. 8649151 - Injector drive circuit (2014-02-11),
2. 7729019 - Image reading system and image reading program (2010-06-01),
3. 7327493 - Image reading system and image reading program (2008-02-05),
4. 7247004 - Electronically controlled actuator (2007-07-24),
5. 7065966 - Position control method by motor drive and control unit (2006-06-27),
6. 6727909 - Image editing apparatus and method and medium on which programs are recorded (2004-04-27),
7. 6563602 - Image processing apparatus and method, and recording medium (2003-05-13),
8. 6507371 - Communication apparatus and method that link a network address with designated image information (2003-01-14),
9. 6331042 - System for calibrating image processing characteristics of a printer (2001-12-18),
10. 6091734 - Telecommunication network based on distributed control (2000-07-18),
11. 5687307 - Computer graphic animation in which texture animation is independently (1997-11-11),
12. 5617537 - Message passing system for distributed shared memory multiprocessor (1997-04-01),
13. 5369633 - Digital signal transmission system having monitor equipment (1994-11-29),
14. 5283841 - Image processing method and apparatus (1994-02-01),
15. 5038223 - Image processing method and apparatus for imparting a pictorial or (1991-08-06),

Title: Innovations by Shigeki Yamada: A Pioneer in Imaging and Circuit Technology

Introduction

Shigeki Yamada is a notable inventor based in Yokohama, Japan, renowned for his significant contributions to technology with a remarkable portfolio of 22 patents. His innovations primarily focus on injector drive circuits and advanced image reading systems, showcasing his expertise in both electronics and imaging technology.

Latest Patents

Among his latest patents is the **Injector Drive Circuit**, which features a step-up circuit that generates high voltage from a power supply. This circuit includes a series of switching devices that operate based on the current flowing through the injector, thereby providing precise control. This patent emphasizes the creation of thresholds to manage current limits efficiently. Another of his significant inventions is the **Image Reading System and Image Reading Program**, which revolutionizes the way film is scanned. This invention allows users to reselect film types after prescanning, enabling a tailored scanning process that produces high-resolution images by adjusting color tables accordingly.

Career Highlights

Shigeki Yamada has had a distinguished career, having worked with prominent companies such as Canon and Hitachi, Ltd., where he has influenced advancements in imaging technology. His innovative designs have paved the way for more efficient and user-friendly imaging solutions, emphasizing high-resolution outputs and flexible film processing.

Collaborations

Throughout his career, Yamada collaborated with talented individuals, including Akira Hiramatsu and Atsushi Ito. Working alongside such experts has contributed to his success and the impact of his inventions on the technology landscape.

Conclusion

Shigeki Yamada’s contributions to the fields of injector circuits and imaging technology have made him a respected figure among inventors. With a robust portfolio of patents, his innovations continue to influence the industry, enhancing both user experience and technological capabilities in imaging 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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