Location History:
- Sayama, JP (2012)
- Tochigi, JP (2013 - 2017)
Company Filing History:
6 out of 21,963 
1 out of 4 Years Active: 2012-2017
Title: Takayuki Ohnuma: Innovator in Crankshaft Technology
Introduction
Takayuki Ohnuma is a notable inventor based in Tochigi, Japan. He has made significant contributions to the field of crankshaft technology, holding a total of 6 patents. His innovative approaches have led to advancements in manufacturing processes and product design.
Latest Patents
One of his latest patents is titled "Crankshaft and method for producing the same." This invention involves a crankshaft where one hole, referred to as hole L, is formed in a crankpin. The bottom surface of hole L has a larger area and a depth from the surface of the crankpin that is less than that of another hole, designated as hole M. In the process of forming holes L and M, a preformed product of the crankshaft, which has a shape smaller than that of a cavity, is placed in a die set. Simultaneously, punches are inserted into the crankpin, allowing for the concurrent formation of both holes in each crankpin of the preformed product.
Career Highlights
Throughout his career, Takayuki Ohnuma has worked with prominent companies such as Honda Motor Co., Ltd. and Nichidai Corporation. His experience in these organizations has contributed to his expertise in crankshaft design and manufacturing techniques.
Collaborations
Takayuki has collaborated with notable coworkers, including Tsutomu Ando and Yasuhiro Ito. Their combined efforts have fostered innovation and development in their respective fields.
Conclusion
Takayuki Ohnuma's contributions to crankshaft technology and his innovative patents highlight his role as a significant inventor in the automotive industry. His work continues to influence manufacturing processes and product design in this vital sector.