Shizuoka, Japan

Hiroshi Yamashita

USPTO Granted Patents = 130 

 

Average Co-Inventor Count = 4.1

ph-index = 21

Forward Citations = 1,389(Granted Patents)

Forward Citations (Not Self Cited) = 907(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Shizuoka-ken, JP (2001 - 2004)
  • Gotenba, JP (2007)
  • Kosai, JP (2012)
  • Namazu, JP (2013)
  • Numazu, JP (1986 - 2015)
  • Makinohara, JP (2016 - 2022)
  • Shizuoka, JP (1989 - 2024)

Company Filing History:


Years Active: 1986-2025

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Areas of Expertise:
Toner
Image Forming Apparatus
Developer
Process Cartridge
Power Supply Device
Electrophotographic Toner
Resin Composition
Color Image Forming Method
Harness Routing Structure
Cylindrical Structure
Spring Protection Structure
Two-Component Developer
130 patents (USPTO):Explore Patents

Title: Hiroshi Yamashita: A Prolific Inventor in Shizuoka, Japan

Introduction:

In the world of innovations and patents, Hiroshi Yamashita stands out as one of the most prolific inventors from Shizuoka, Japan. With an impressive number of 127 patents to his name, Yamashita's contributions have greatly impacted various industries. This article will delve into his latest patents, career highlights, collaborations, and provide an overview of his remarkable journey as an inventor.

Latest Patents:

Yamashita's latest patents showcase his ingenuity and problem-solving skills. One notable invention is the "Slide Door Structure," which includes a wire harness routed between a vehicle body and the slide door. This innovation allows for the passage of an electric wire bundle through a bendable exterior member, improving the efficiency of the overall mechanism. Another recent invention is the "Slide Door Harness," which features a wiring material and a door-side fixing portion that allows for easy rotation and integration of the wiring material within the slide door.

Career Highlights:

During his career, Yamashita has made significant contributions to various companies, leaving his mark on the field of inventions and patents. He worked at Ricoh Company, Ltd., a renowned multinational imaging and electronics company, where he honed his skills and gained valuable industry experience. His innovative mindset and dedication to his craft propelled him to develop groundbreaking solutions and earn numerous patents. Yamashita also made notable contributions at Yazaki Corporation, a global automotive component manufacturer, further cementing his reputation as an exceptional inventor.

Collaborations:

Teamwork and collaboration often play a pivotal role in innovation, and Yamashita has had the privilege of collaborating with esteemed coworkers throughout his career. Notably, he has worked alongside Tsuyoshi Sugimoto and Tsunemi Sugiyama, who have contributed to his impactful inventions. These collaborations fostered an environment of shared knowledge and expertise, further enhancing Yamashita's ability to push the boundaries of innovation.

Conclusion:

Hiroshi Yamashita's outstanding contributions to the world of innovations and patents have made him a respected figure in Shizuoka, Japan. With an impressive portfolio of 127 patents and a track record of working for esteemed companies like Ricoh Company, Ltd. and Yazaki Corporation, Yamashita has continuously demonstrated his ability to develop inventive solutions and address real-world challenges. His latest patents, such as the Slide Door Structure and Slide Door Harness, reflect his commitment to pushing the boundaries of innovation and improving existing technologies. As an inventive force in his field, Hiroshi Yamashita continues to inspire and leave a lasting impact on the world of inventions.

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