Location History:
- Wako, JP (1989)
- Tochigi, JP (1989 - 1990)
- Saitama, JP (1988 - 1993)
Company Filing History:
11 out of 10,092 
2 out of 182 
Years Active: 1988-1993
Title: Kazunori Shibuya: Innovator in Four-Wheel Drive Technology
Introduction
Kazunori Shibuya is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of power transmission systems for four-wheel drive vehicles. With a total of 13 patents to his name, Shibuya's innovations have enhanced vehicle performance and efficiency.
Latest Patents
One of Shibuya's latest patents is a power transmitting system for four-wheel drive vehicles. This system includes a first hydraulic pump driven interlockingly with the rotation of the front wheels and a second hydraulic pump driven interlockingly with the rotation of the rear wheels. A hydraulic clutch connects the front and rear wheels, engaging based on the difference in oil pressure between the two hydraulic pumps. This design maximizes air cooling for the hydraulic clutch and minimizes the length of oil passages.
Another notable patent is a power transmission device for four-wheel drive vehicles. This device features an engine that directly drives a primary driven axle and a torque transmission device that transmits drive torque to a secondary driven axle as needed. The torque transmitted between the front and rear axles is reduced as vehicle speed increases, thereby reducing unnecessary load on the rear axle members. The torque transmission device also limits the upper torque that can be transmitted to the secondary driven axle.
Career Highlights
Kazunori Shibuya has worked with notable companies in the automotive industry, including Honda Giken Kogyo Kabushiki Kaisha and Honda Giken Kogyo K.K. His experience in these organizations has allowed him to develop and refine his innovative ideas in vehicle technology.
Collaborations
Shibuya has collaborated with several talented individuals in his field, including Katsuhiko Masuda and Kazuhiko Shimada. These collaborations have contributed to the advancement of automotive technologies and the successful implementation of his inventions.
Conclusion
Kazunori Shibuya is a distinguished inventor whose work in four-wheel drive technology has made a lasting impact on the automotive industry. His innovative patents and collaborations reflect his commitment to enhancing vehicle performance and efficiency.