This inventor holds 8 USPTO granted patents. Top assignees: Bunker Ramo Corporation, Ddk Ltd., Hitachi, Ltd.. Active years: 1976-2002.
Location History:
- Tokyo, JA (1976)
- Tokyo, JP (1979 - 2002)
Company Filing History:
4 out of 297 
4 out of 140 
1 out of 42,719 
Years Active: 1976-2002
Title: Innovations of Tomonari Otsuki
Introduction
Tomonari Otsuki is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of electrical connectors, holding a total of 8 patents. His work focuses on enhancing the functionality and reliability of electrical connections.
Latest Patents
One of Otsuki's latest patents is an electrical connector designed to reduce or prevent adherence of conductive material to contact portions. This innovative connector includes a first connector with a connector plate and multiple electric contacts, along with a second connector featuring electric contact elements on conductors arranged on a board. The board is uniquely formed with slits around the conductors, allowing for elastic support and preventing foreign substances from adhering to the electric contact elements after numerous connections.
Another significant patent is the C-shaped compliant contact. This contact is designed with a connection portion for electric cables, a press-fitting portion for insertion into a printed circuit board, and a contact portion for mating with another connector. The design includes a U-shaped groove and an eccentric arc portion, which work together to ensure that the contact remains intact during the press-fitting process, thereby enhancing the reliability of the connection.
Career Highlights
Throughout his career, Tomonari Otsuki has worked with various companies, including Bunker Ramo Corporation and DDK Ltd. His experience in these organizations has contributed to his expertise in electrical engineering and connector design.
Collaborations
Otsuki has collaborated with notable coworkers such as Hiromasa Inouye and Yasue Yamazaki. Their combined efforts have led to advancements in the field of electrical connectors and related technologies.
Conclusion
Tomonari Otsuki's innovative work in electrical connectors has significantly impacted the industry. His patents reflect a commitment to improving the reliability and functionality of electrical connections. Otsuki's contributions continue to influence the field and inspire future innovations.