Location History:
- Tokyo, JP (2004 - 2008)
- Suginami-ku, JP (2006 - 2009)
Company Filing History:
Years Active: 2004-2009
Title: Innovations by Isao Tohyama
Introduction
Isao Tohyama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of engine starters, holding a total of seven patents. His work focuses on enhancing the reliability and efficiency of small-sized engine starters.
Latest Patents
One of his latest patents is a starter for small-sized engines. This innovative starter is designed to reliably start the engine using a rope reel while stably supporting a drive cam. The starter includes a cylindrical drive cam with a starter clutch mechanism, a rope reel for a recoil starter, and a starter motor. The drive cam can be selectively connected to either the rope reel or the starter motor. The rope reel is directly connected to the drive cam through a one-way clutch mechanism. Additionally, support plates project from the inner surface of the starter case toward the outer peripheral surface of the drive cam, ensuring stability.
Another significant patent is the recoil starter. This design features a rope reel that holds a recoil rope, which is wound and fitted turnably on a reel pivot inside the starter case. A recoil spring energizes the rope reel, allowing it to rewind the rope. The cam member transfers motion to the engine side via a ratchet mechanism, while a damper spring engages with both the rope reel and the cam member. A bearing portion supports the cam member, and a dust cover is integrated with the starter case to protect the components.
Career Highlights
Isao Tohyama works at Starting Industrial Co., Ltd., where he continues to innovate in the field of engine starters. His expertise and dedication have led to advancements that improve the functionality and reliability of small engine starters.
Collaborations
He collaborates with talented coworkers, including Toshinori Morishige and Shuhei Tsunoda, who contribute to the innovative projects at Starting Industrial Co., Ltd.
Conclusion
Isao Tohyama's contributions to engine starter technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of engineering principles and a desire to enhance the performance of small-sized engines.