This inventor holds 37 USPTO granted patents and 1 published patent application and 7 EPO patents, primarily in Fuel Injection Technology. Top assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd., Babcock-Hitachi K.k.. Active years: 1998-2015.
Location History:
- Chiyoda-machi, JP (1998)
- Ibaraki, JP (1998)
- Tokyo, JP (2007)
- Kashiwa, JP (1999 - 2015)
Company Filing History:
29 out of 42,713 
2 out of 248 
1 out of 26 
Years Active: 1998-2015
Areas of Expertise:
Title: Innovations by Takehiko Kowatari: Pioneering Fuel Injection Technology
Introduction: Takehiko Kowatari, based in Kashiwa, Japan, is an esteemed inventor recognized for his significant contributions to the field of fuel injection technology. With a remarkable portfolio of 37 patents, Kowatari continues to push the boundaries of innovation in internal combustion engine systems.
Latest Patents: Among his latest inventive feats are advancements in fuel injection valves for internal combustion engines. His patents include a design that enhances valve-closing responsivity while maintaining durability at the collision portion of stationary and movable cores. This design incorporates a non-collision portion that allows for fluid gaps and further increases efficiency. Another noteworthy patent focuses on reducing valve closing lag time due to fluid resistance, effectively lowering the minimum injection limit. This innovation features a fuel reservoir, strategically placed to optimize fuel flow and injection processes.
Career Highlights: Takehiko Kowatari has notably worked with prominent companies like Hitachi, Ltd., where he honed his engineering skills and contributed to advanced technological solutions. His innovative mindset has driven the development of cutting-edge systems that impact the automotive industry.
Collaborations: Kowatari has collaborated with talented individuals, including Yuzo Kadomukai and Masaru Ito. These partnerships have fostered an environment of creativity and technological advancement, leading to the successful development of several patents.
Conclusion: Takehiko Kowatari's innovative spirit and extensive patent portfolio solidify his reputation as a leading inventor in fuel injection technology. His contributions have not only advanced engineering practices but also enhanced the efficiency of internal combustion engines, demonstrating the significant impact of his work in the automotive sector.