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For the Inventor, By the Inventor

Kanagawa, Japan

Tadashi Hayakawa

USPTO Granted Patents = 67 

 

Average Co-Inventor Count = 4.3

ph-index = 12

Forward Citations = 637(Granted Patents)

Forward Citations (Not Self Cited) = 601(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tokyo, JP (1996)
  • Tokyo-to, JP (1996)
  • Kanagawa Prefecture, JP (2012)
  • Yokohama, JP (2002 - 2023)
  • Kanagawa, JP (2003 - 2023)

Company Filing History:

goldMedal62 out of 28,577 
 
Ricoh Company, Ltd.
 patents
silverMedal5 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents

Years Active: 1996-2025

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Areas of Expertise:
Information Storage System
Powder Container
Image Forming Apparatus
Developer Container
Toner Container
Ink Cartridge
Removable Device
Powder Supply Device
Liquid Cartridge
Imaging Material Container
Powder Replenishing Method
Magnetic Field Generating Unit
67 patents (USPTO):Explore Patents
1. 12416878 - Information storage system including a plurality of terminals (2025-09-16),
2. 11768448 - Information storage system including a plurality of terminals (2023-09-26),
3. 11550239 - Powder container, powder supply device and image forming apparatus (2023-01-10),
4. 11467516 - Powder container and image forming apparatus (2022-10-11),
5. 11429036 - Information storage system including a plurality of terminals (2022-08-30),
6. 11281124 - Powder container, powder supply device and image forming apparatus (2022-03-22),
7. 11275327 - Information storage system including a plurality of terminals (2022-03-15),
8. 11249421 - Powder container, powder supply device and image forming apparatus (2022-02-15),
9. 11188007 - Developer container which discharges toner from a lower side and includes a box section (2021-11-30),
10. 10948850 - Powder container and image forming apparatus (2021-03-16),
11. 10908531 - Powder container, powder supply device and image forming apparatus (2021-02-02),
12. 10754275 - Apparatus and method for preventing an information storage device from falling from a removable device (2020-08-25),
13. 10725398 - Developer container having a cap with three portions of different diameters (2020-07-28),
14. 10474062 - Powder container and image forming apparatus (2019-11-12),
15. 10466623 - Powder container, powder supply device and image forming apparatus (2019-11-05),

Title: Tadashi Hayakawa: Pioneering Inventor from Kanagawa

Introduction: Tadashi Hayakawa is a renowned inventor hailing from Kanagawa, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Hayakawa holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his innovative spirit and forward-thinking approach.

Career Highlights: With a career spanning over two decades, Tadashi Hayakawa has worked with leading research institutions and tech companies, spearheading projects that have revolutionized the industry.

Collaborations: Throughout his career, Hayakawa has collaborated with top engineers, scientists, and designers, fostering a culture of innovation and excellence in all his projects.

Conclusion: Tadashi Hayakawa's relentless pursuit of innovation and his passion for creating cutting-edge technologies have solidified his position as a trailblazing inventor in the global tech landscape.

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