Location History:
- Fujisawa, JP (2017)
- Kanagawa, JP (2013 - 2023)
Company Filing History:
4 out of 2,430 
1 out of 89 Years Active: 2013-2023
Title: Innovations of Takeshi Maejima
Introduction
Takeshi Maejima is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced bearing technologies. With a total of four patents to his name, his work has had a considerable impact on various industries.
Latest Patents
One of his latest patents is a ball bearing design that includes an inner ring with a raceway surface and an outer ring also featuring a raceway surface. This innovative ball bearing contains a plurality of rolling elements that are rollably disposed between the raceway surfaces of the inner and outer rings. Additionally, it features a resin cage designed to retain the rolling elements. The cage is a crown type, with an annular base portion and multiple pockets formed in an axial end face, which securely hold the rolling elements. The design ensures that the axial distance between the center of gravity of the cage and the curvature center of the inner surface of each pocket is 0.6 or more times the radius of curvature of the inner surface. This ball bearing is utilized in hybrid vehicle transmissions. Another significant patent involves a grease composition specifically formulated for electric vehicle (EV) and hybrid electric vehicle (HEV) driving motor bearings, which includes a diurea thickener.
Career Highlights
Throughout his career, Takeshi Maejima has worked with prominent companies such as NSK Corporation and Kyodo Yushi Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in the field of bearing technology.
Collaborations
Takeshi has collaborated with talented individuals in his field, including Takanori Tanaka and Youichi Matsumoto. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Takeshi Maejima's contributions to the field of engineering, particularly in bearing technology, highlight his innovative spirit and dedication to advancing the industry. His patents and collaborations reflect a commitment to excellence and innovation.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.