This inventor holds 10 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co., Ltd., Hitachi Car Engineering Co., Ltd.. Active years: 1983-2006.
Location History:
- Katsuta, JP (1983 - 1985)
- Hitachi, JP (1991 - 2005)
- Ibaraki, JP (2006)
Company Filing History:
8 out of 42,719 
3 out of 152 
2 out of 248 
Years Active: 1983-2006
Title: Masahiro Souma: Innovator in Fuel Injection Technology
Introduction
Masahiro Souma is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the field of fuel injection technology, holding a total of 10 patents. His innovative designs have enhanced the performance and efficiency of internal combustion engines.
Latest Patents
One of Souma's latest patents is a fuel injection valve that features a valve seat member with a fuel injection aperture. The design includes a movable valve body that can transition between a closed position and an open position. A biasing member ensures that the valve body remains in the closed position until an electromagnetic coil is energized, allowing the valve body to open against the biasing force. Additionally, the nozzle plate connected to the valve seat member has a domed portion with multiple fuel injection openings, which enhances the atomization performance of the fuel. Another notable patent involves a fuel injection valve for internal combustion engines, which incorporates grooves along the circumferential direction of injection holes to improve fuel flow velocity and atomization.
Career Highlights
Throughout his career, Masahiro Souma has worked with notable companies such as Hitachi, Ltd. and Hitachi Automotive Engineering Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in fuel injection technology.
Collaborations
Souma has collaborated with esteemed colleagues, including Tohru Ishikawa and Katsuyoshi Terakado. Their combined expertise has contributed to the advancement of fuel injection systems and related technologies.
Conclusion
Masahiro Souma's contributions to fuel injection technology have made a lasting impact on the automotive industry. His innovative patents and collaborations with industry professionals highlight his dedication to enhancing engine performance and efficiency.