This inventor holds 11 USPTO granted patents. Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation. Active years: 2005-2010.
Location History:
- Kadoma, JP (2005)
- Ozu, JP (2007 - 2009)
- Ehime, JP (2009)
- Niihama, JP (2007 - 2010)
Company Filing History:
7 out of 27,375 
4 out of 16,454 
Years Active: 2005-2010
Title: Takeyoshi Yamamoto: Innovator in Hydrodynamic Bearing Technology
Introduction
Takeyoshi Yamamoto is a prominent inventor based in Niihama, Japan. He has made significant contributions to the field of hydrodynamic bearing devices and spindle motors. With a total of 11 patents to his name, his work has greatly influenced the reliability and efficiency of various mechanical systems.
Latest Patents
Yamamoto's latest patents include innovative designs for hydrodynamic bearing devices and spindle motors. One of his notable inventions is a highly reliable hydrodynamic bearing device that improves cleanliness by utilizing an iron metal with an austenite structure, which is a non-magnetic body. This design addresses the issue of reduced abrasion resistance due to low hardness. The shaft is constructed from this iron metal, and a surface-treated layer containing solid lubricant is applied to enhance performance. Additionally, his patents detail a spindle motor that incorporates these advanced bearing devices, featuring radial and thrust dynamic pressure generating grooves that optimize bearing angle stiffness and load distribution.
Career Highlights
Throughout his career, Takeyoshi Yamamoto has worked with renowned companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has allowed him to develop and refine his innovative technologies, contributing to advancements in the industry.
Collaborations
Yamamoto has collaborated with notable colleagues, including Yasunori Tokuno and Masahiro Jyono. Their combined expertise has fostered a creative environment that has led to the development of groundbreaking technologies in the field of hydrodynamic bearings.
Conclusion
Takeyoshi Yamamoto's contributions to hydrodynamic bearing technology and spindle motors have established him as a key figure in the field. His innovative designs and collaborative efforts continue to influence advancements in mechanical engineering.