Location History:
- Kamifukuoka, JP (1992)
- Iruma-gun, JP (1997)
- Saitama-ken, JP (1998)
- Wako, JP (2001 - 2013)
Company Filing History:
4 out of 10,092 
1 out of 21,893 
Years Active: 1992-2013
Title: Keiichi Hanyu: Innovator in Hydraulic Technology
Introduction
Keiichi Hanyu is a notable inventor based in Wako, Japan. He has made significant contributions to the field of hydraulic technology, particularly in automatic transmissions. With a total of 5 patents to his name, Hanyu's work has had a considerable impact on automotive engineering.
Latest Patents
One of Hanyu's latest patents is a hydraulic apparatus for automatic transmission. This invention features a torque converter with a lockup clutch and continuously variable transmission (CVT). It includes a first control valve for hydraulic pressure supply to the lockup clutch oil chamber, along with a first electromagnetic solenoid valve for controlling the first control valve's operation. Additionally, a second control valve manages hydraulic pressure supply to the CVT pulleys, complemented by a second electromagnetic solenoid valve. The design allows for the disengagement of the lockup clutch without operator intervention in case of a failure in the control system.
Another significant patent is the lubrication pressure controller. This device consists of a lubrication pressure regulating valve and a cooler pressure regulating valve. The lubrication pressure regulating valve adjusts the pressure in the lubrication oil passage, while the cooler pressure regulating valve manages the pressure supplied to an oil cooler. This innovative design ensures an adequate supply of lubrication oil, even if one of the valves experiences a malfunction.
Career Highlights
Hanyu has worked with prominent companies in the automotive industry, including Honda Giken Kogyo Kabushiki Kaisha and Honda Motor Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in hydraulic technology.
Collaborations
Throughout his career, Hanyu has collaborated with talented individuals such as Takashi Aoki and Hideaki Yoshida. These partnerships have contributed to the advancement of his inventions and the overall progress in hydraulic systems.
Conclusion
Keiichi Hanyu is a distinguished inventor whose work in hydraulic technology has led to significant advancements in automatic transmissions. His innovative patents and collaborations with industry leaders highlight his contributions to the field. Hanyu's dedication to improving hydraulic systems continues to influence automotive engineering today.