This inventor holds 4 USPTO granted patents. Top assignee: Toyota Jidosha Kabushiki Kaisha. Active years: 1998-2002.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Shizuoka, JP (1998)
- Suntou-gun, JP (1998)
- Shizuoka-ken, JP (2001 - 2002)
Company Filing History:
Years Active: 1998-2002
Title: Sigemitu Iisaka: Innovator in Internal Combustion Engine Technology
Introduction
Sigemitu Iisaka is a notable inventor based in Shizuoka-ken, Japan. He has made significant contributions to the field of internal combustion engines, holding a total of 4 patents. His work focuses on enhancing engine efficiency and performance through innovative designs.
Latest Patents
One of Iisaka's latest patents is for a direct fuel injection-type spark-ignition internal combustion engine. This engine features a spark plug and a cavity formed on the top surface of the piston. The design includes a fuel injection valve that injects fuel into the cavity in a nearly flat fan shape, which has a relatively small thickness. The opposing side wall of the cavity is designed to lead the fuel toward the spark plug, incorporating an arcuate portion with multiple shapes in a plan view. This innovative design allows for better fuel management and combustion efficiency.
Another patent by Iisaka also focuses on a direct fuel injection-type spark-ignition internal combustion engine. This version includes a cavity on the piston top surface, a spark plug facing the cavity, and a fuel injection valve. The side wall of the cavity features a deflection portion and a circular arc portion that connects smoothly to the bottom wall. The angles and radii of these components are meticulously designed to optimize fuel injection and combustion.
Career Highlights
Sigemitu Iisaka is currently employed at Toyota Jidosha Kabushiki Kaisha, a leading automotive manufacturer. His work at Toyota has allowed him to apply his innovative ideas in a practical setting, contributing to the advancement of automotive technology.
Collaborations
Iisaka has collaborated with notable coworkers such as Masaaki Tanaka and Michio Furuhashi. Their combined expertise has fostered a creative environment that encourages innovation in engine technology.
Conclusion
Sigemitu Iisaka's contributions to the field of internal combustion engines demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of engine mechanics and a drive to improve automotive performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile