Saitama, Japan

Masaru Yamashita

This inventor holds 5 USPTO granted patents. Top assignee: Honda Giken Kogyo Kabushiki Kaisha. Active years: 1981-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaru Yamashita. Retrieved from https://idiyas.com/inventor/masaru-yamashita

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 2

Forward Citations = 19(Granted Patents)


Location History:

  • Higashimatsuyama, JP (1981)
  • Saitama, JP (1986 - 2000)

Company Filing History:


Years Active: 1981-2000

Loading Chart...
5 patents (USPTO):Explore Patents

Title: The Innovative Mind of Masaru Yamashita: A Pioneer in Hydraulics

Introduction: Masaru Yamashita, a distinguished inventor hailing from Saitama, Japan, has made significant contributions to the field of hydraulics, particularly in the automotive industry. With five patents to his name, his work has paved the way for advancements in vehicular transmission systems.

Latest Patents: Among his recent innovations is a control apparatus for hydraulically operated vehicular transmission. This technology involves a sophisticated system that includes an orifice, a bypass path, and a switching valve designed to optimize the hydraulic pressure delivery in vehicles. The apparatus manages hydraulic oil flow through a coupling element, ensuring efficient transmission performance based on the engine's throttle opening degree. Moreover, Masaru has developed another patent for controlling hydraulic oil during speed changes. This system incorporates a shift valve unit and a throttle hydraulic pressure signal outputting device, enhancing the operational efficiency of multi-speed vehicular transmissions.

Career Highlights: Masaru Yamashita's career has been greatly influenced by his role at Honda Giken Kogyo Kabushiki Kaisha, a prominent automotive manufacturer known for its innovation and technical prowess. His dedication to advancing hydraulic technologies within the automotive sphere has positioned him as an exemplary figure in his industry.

Collaborations: Throughout his career, Masaru has collaborated with talented individuals such as Masaya Tamai and Yasushi Shimizu. Together, they have worked on developing innovative solutions that enhance vehicular functionality and efficiency.

Conclusion: Masaru Yamashita's inventive spirit and technical expertise have resulted in noteworthy advancements in hydraulic systems for vehicles. With a total of five patents, his contributions continue to influence modern vehicle transmission technology, making him a vital part of the automotive innovation landscape.

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]
Loading…