Location History:
- Yamatokooriyama, JP (2002 - 2009)
- Nara, JP (1994 - 2010)
- Yamatokoriyama, JP (1999 - 2012)
- Osaka, JP (1991 - 2015)
Company Filing History:
14 out of 772 
4 out of 2,419 
1 out of 51 
Years Active: 1991-2015
Title: Hirokazu Arai: A Trailblazer in Resin Molding and Electric Power Steering Innovations.
Introduction
Hirokazu Arai, an innovative inventor hailing from Yamatokoriyama, Japan, holds an impressive portfolio of 22 patents. His work primarily focuses on advancements in phenol resin molding materials and electric power steering systems. Arai's contributions have significantly impacted the automotive and manufacturing industries, showcasing his dedication to technological enhancements.
Latest Patents
Among Arai's latest patents is a phenol resin molding material that comprises a specific formulation designed for enhanced performance. This molding material includes 100 parts by weight of a resol type phenol resin, supplemented by 40 to 100 parts by weight of inorganic fiber, and 30 to 90 parts by weight of natural silica powder treated with a coupling agent. Additionally, it incorporates 1 to 15 parts by weight of a rubber component. Notably, the molded articles produced from this formulation include a resin pulley, designed for improved durability and functionality.
Another significant patent developed by Arai is an electric power steering apparatus. This innovative system efficiently transmits rotary motion from an electric motor to a steering shaft utilizing a worm shaft and worm wheel mechanism. A unique feature of this apparatus is the incorporation of a deflectable worm shaft or worm wheel, equipped with a biasing member that optimizes steering performance.
Career Highlights
Arai has made notable contributions to both Koyo Seiko Company, Ltd., and Jtekt Corporation, where he applied his inventive prowess to develop cutting-edge technologies. His role in these companies has allowed him to explore and refine his ideas, ultimately leading to multiple patents that enhance efficiency and performance across various applications.
Collaborations
Throughout his career, Arai has collaborated with esteemed colleagues, including Takanori Kurokawa and Hiroshi Ueno. These collaborations have fostered an environment of innovation, enabling Arai to engage in dynamic brainstorming and the development of groundbreaking technologies.
Conclusion
Hirokazu Arai's prolific contributions to the fields of resin molding and electric power steering systems exemplify his commitment to innovation. With 22 patents to his name, Arai continues to inspire future generations of inventors in the pursuit of technological advancement. His journey serves as a testament to the power of creativity and collaboration in driving the industry forward.