This inventor holds 4 USPTO granted patents. Top assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha, Kabushiki Kaisha Tokai Rika Denki Seisakusho. Active years: 1978-1986.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 38,912 
2 out of 1,838 
1 out of 2,030 Years Active: 1978-1986
Title: Hiromichi Shigenobu: Innovator in Automotive Technology
Introduction
Hiromichi Shigenobu is a notable inventor based in Toyota, Japan. He has made significant contributions to automotive technology, holding a total of 4 patents. His work focuses on enhancing vehicle performance and safety through innovative engineering solutions.
Latest Patents
One of Shigenobu's latest patents is an automatic speed controller for use in vehicles. This device maintains the actual vehicle speed at a preset level, utilizing a vacuum-type actuator operated by a diaphragm. The diaphragm is actuated by controlling the volume of atmospheric pressure relative to vacuum pressure. In the event of a malfunction, atmospheric pressure is introduced into the actuator to prevent the vehicle from exceeding the preset speed. Another significant patent is a glow plug current supply control system for diesel engines. This system includes a rapid heating circuit and an afterglow circuit, allowing current to be supplied to the glow plug through either circuit. Before the diesel engine starts, current is supplied through the rapid heating circuit, and after starting, it switches to the afterglow circuit.
Career Highlights
Shigenobu has worked with prominent companies in the automotive industry, including Toyota Motor Corporation and Toyota Jidosha Kogyo Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas in vehicle technology.
Collaborations
Throughout his career, Shigenobu has collaborated with talented individuals such as Toshiyuki Sekimori and Toshiaki Isobe. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
Hiromichi Shigenobu's contributions to automotive technology through his patents and collaborations highlight his role as an influential inventor in the industry. His innovative solutions continue to impact vehicle performance and safety.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile