Location History:
- Souka, JP (2006)
- Chiba, JP (2009)
- Matsudo, JP (2011)
Company Filing History:
3 out of 149 
2 out of 10,092 
Years Active: 2006-2011
Title: Tomoaki Arakawa: Innovator in Sintered Gear Technology
Introduction
Tomoaki Arakawa is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of sintered gear technology, holding a total of 3 patents. His innovative approaches have advanced the manufacturing processes and applications of sintered gears.
Latest Patents
Arakawa's latest patents include a production method for sintered gears. This method involves creating a sintered gear that features plural tooth portions with a tooth flank and a tooth bottom land. A high-density area is formed over the entire surface of the tooth portion, achieving a density of 7.6 Mg/m³ or more, with a depth of 1 mm or more from the surface. Additionally, a low-density area is established in deeper regions, having a density of 7.3 Mg/m³ or less. An intermediate area is also formed, exhibiting a density gradient that decreases from the high-density area to the low-density area. Another patent discloses a sintered gear composed of a sintered alloy with a metal matrix and pores. The tooth surface and the bottom land have a densified layer where the porosity is reduced to 10% or less. The thickness of the densified layer at the tooth surface ranges from 300 to 1,000 microns, while at the bottom land, it is between 10 to 300 microns.
Career Highlights
Throughout his career, Tomoaki Arakawa has worked with prominent companies such as Hitachi Powdered Metals Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His experience in these organizations has allowed him to refine his expertise in sintered materials and gear technology.
Collaborations
Arakawa has collaborated with several talented individuals in his field, including Yuji Yamanishi and Ryoji Sato. These collaborations have contributed to the development of innovative solutions in sintered gear manufacturing.
Conclusion
Tomoaki Arakawa's contributions to sintered gear technology highlight his role as an influential inventor. His patents and collaborations reflect his commitment to advancing manufacturing processes in this specialized field.
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.