Kazuyoshi Yamada

This inventor holds 53 USPTO granted patents and 2 published patent applications and 2 EPO patents, primarily in Optical Communication (CPC class G02B). Top assignees: Ricoh Company, Ltd., Sony Corporation, Nec Corporation. Active years: 1987-2021.

USPTO Granted Patents = 53 (Patent Applications = 2)

% Patents Active = 88.7

EPO Patents = 2 (Patent Applications = 1)

Average Co-Inventor Count = 2.7

ph-index = 11

Forward Citations = 378(Granted Patents)

Forward Citations (Not Self Cited) = 351(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Yokohama, JP (2004 - 2013)
Kanagawa-ken, JP (2014)
Kanagawa, JP (2000 - 2017)
Tokyo, JP (1987 - 2020)
Ohta-ku, JP (2015 - 2021)

Company Filing History:

Fujitsu Hitachi Plasma Display Limited

patents

Years Active: 1987-2021

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Areas of Expertise:

Mobile Printer

Optical Module

Optical Fiber Cable

Image Forming Apparatus

Laser Printer

Optical Communication

Scanner

Copying Machine

Optical-Electrical Hybrid

Capacitive Load Drive Circuit

Color Reproduction Correction

53 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D914083 - Mobile printer (2021-03-23),

2. D904506 - Mobile printer (2020-12-08),

3. D902990 - Mobile printer (2020-11-24),

4. 10761282 - Optical-electrical hybrid module (2020-09-01),

5. 10578854 - Optical connector, optical connector set, image pickup unit, image pickup system, and optical transmission module (2020-03-03),

6. 9995893 - Optical-electrical hybrid module (2018-06-12),

7. RE46633 - Optical module (2017-12-11),

8. 9659379 - Information processing system and information processing method (2017-05-23),

9. 9500822 - Optical-electrical hybrid module (2016-11-22),

10. 9374169 - Optical communication fiber, optical communication module, and optical communication system (2016-06-21),

11. 9341791 - Optical module, manufacturing method of optical module and optical communication device (2016-05-17),

12. D736311 - Printer (2015-08-11),

13. D733217 - Printer (2015-06-30),

14. 9033589 - Optical fiber cable processing device, method for processing the same, and case for optical fiber cable (2015-05-19),

15. 8950950 - Optical-electrical hybrid module (2015-02-10),

Title: Kazuyoshi Yamada: An Innovative Mind from Kanagawa

Introduction

Kazuyoshi Yamada is a prominent inventor based in Kanagawa, Japan, known for his significant contributions to technology and innovation. With an impressive portfolio of 53 patents, his work has influenced various sectors, particularly through advancements in mobile printing technology.

Latest Patents

Among his latest innovations is a mobile printer, showcasing his commitment to enhancing portable technology and improving user convenience. This invention reflects the growing demand for efficient and reliable printing solutions in an increasingly mobile world.

Career Highlights

Kazuyoshi Yamada has had a remarkable career, having worked with renowned companies such as Ricoh Company, Ltd. and Sony Corporation. His experiences in these leading firms have allowed him to develop and refine his innovative ideas, establishing him as a key player in the field of technology.

Collaborations

Throughout his career, Yamada has collaborated with talented individuals, such as Masaaki Kabumoto and Yoshihisa Minakawa. These partnerships have fostered an environment of creativity and innovation, leading to the development of cutting-edge technologies.

Conclusion

Kazuyoshi Yamada stands out as a notable inventor in the contemporary landscape of technology. His extensive patent portfolio, coupled with his impactful career and collaborations, underscores his dedication to innovation and excellence. As he continues to create and inspire, Yamada's contributions will undoubtedly shape the future of technology.