This inventor holds 7 USPTO granted patents and 5 EPO patents. Top assignee: The Yokohama Rubber Co., Ltd.. Active years: 1997-2012.
Location History:
- Hiratsuka, JP (1997 - 2003)
- Kanagawa, JP (2012)
Company Filing History:
Years Active: 1997-2012
Title: Hirokatsu Maruyama: Innovator in Pneumatic Tire Technology
Introduction
Hirokatsu Maruyama is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of tire technology, holding a total of 7 patents. His innovative designs focus on enhancing the performance and durability of pneumatic tires.
Latest Patents
Maruyama's latest patents include a groundbreaking pneumatic tire design that specifies critical ratios for various dimensions of the tire. The patent outlines that 48% ≤ HB/HA ≤ 52%, 98% ≤ HC/HA ≤ 100%, 108% ≤ WB/WA ≤ 115%, and 55% ≤ WC/WA ≤ 75%. These parameters are essential for optimizing the tire's structure and performance. Another notable patent involves a pneumatic tire featuring zig-zag main grooves, which effectively controls uneven wear. This design addresses the challenges posed by changes in tread radius during inflation, ensuring better longevity and performance.
Career Highlights
Hirokatsu Maruyama is associated with The Yokohama Rubber Co., Ltd., a leading company in the tire manufacturing industry. His work has significantly impacted the development of advanced tire technologies, contributing to the company's reputation for innovation and quality.
Collaborations
Maruyama has collaborated with notable colleagues, including Kohtaroh Iwabuchi and Hiroshi Iizuka. Their combined expertise has fostered advancements in tire design and technology.
Conclusion
Hirokatsu Maruyama's contributions to pneumatic tire technology exemplify his innovative spirit and dedication to improving tire performance. His patents reflect a deep understanding of engineering principles and a commitment to excellence in the automotive industry.