This inventor holds 2 USPTO granted patents. Top assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1978-1995.
Location History:
- Aichi, JP (1978)
- Nishikamo, JP (1995)
Company Filing History:

Years Active: 1978-1995
Title: Yuji Niimi: Innovator in Cleaning and Differential Technologies
Introduction
Yuji Niimi is a notable inventor based in Nishikamo, Japan. He has made significant contributions to the fields of cleaning apparatuses and differential devices for vehicles. With a total of 2 patents, his work reflects a commitment to innovation and engineering excellence.
Latest Patents
One of Yuji Niimi's latest patents is an "Apparatus for cleaning strips before press forming, having de-oiling." This invention is designed to remove foreign matters from workpieces in the form of strips or sheets before they undergo a press forming operation. The apparatus includes a feeding device for successive workpieces, de-oiling rolls that absorb oily substances, and tacky rolls that remove foreign matters from the surfaces of the workpieces.
Another significant patent is the "Differential device for vehicles." This invention features a differential casing that is split into two portions, allowing for easier assembly of various devices. The casing and ring gear are joined by electron beam welding, which lightens the structure and strengthens the pinion shaft support, ultimately enhancing the performance of the vehicle's differential system.
Career Highlights
Yuji Niimi has worked with Toyota Motor Corporation, where he has contributed to various innovative projects. His experience at such a prestigious company has allowed him to refine his skills and develop groundbreaking technologies.
Collaborations
Throughout his career, Yuji Niimi has collaborated with notable colleagues, including Kyozo Torii and Kenji Koshino. These partnerships have fostered a creative environment that has led to the development of impactful inventions.
Conclusion
Yuji Niimi's contributions to the fields of cleaning technologies and vehicle differentials showcase his innovative spirit and engineering prowess. His patents reflect a dedication to improving industrial processes and vehicle performance.