Location History:
- Hirakata, JP (2004)
- Isehara, JP (1999 - 2005)
- Hiratsuka, JP (2006 - 2013)
- Ebina, JP (2014)
Company Filing History:
Years Active: 1999-2014
Title: **The Innovations of Naritoshi Ohtsukasa**
Introduction
Naritoshi Ohtsukasa, an accomplished inventor from Hiratsuka, Japan, has made significant contributions to the field of hydraulic technology. With a portfolio comprising 13 patents, Ohtsukasa's work focuses predominantly on enhancing vehicle performance through innovative hydraulic systems.
Latest Patents
Ohtsukasa's latest patents showcase his expertise in hydraulic drive systems. One of his notable inventions is the "Controller of vehicle with hydrostatic continuously variable transmission." This innovation accurately determines the timing for suppressing overrun in hydraulic motors, thereby improving work efficiency. A pressure difference (ΔP) is calculated based on the detected travel direction of the vehicle and the pressures on the discharge and suction port sides of a hydraulic pump. The invention allows for the control of the engine and hydraulic pump, ensuring that overrun is effectively suppressed.
Another significant patent is the "Hydraulic drive apparatus," designed to drive a variable displacement hydraulic motor using pressure oil discharged from a variable displacement hydraulic pump. This apparatus incorporates a torque upper limit setting unit that establishes an output torque limit for the hydraulic motor, alongside a control unit that adjusts the capacity limits of both the hydraulic motor and the hydraulic pump accordingly.
Career Highlights
Throughout his career, Ohtsukasa has been associated with reputable companies such as Komatsu Corporation and Komatsu Electronic Metals Co., Ltd. His tenure at these organizations has undoubtedly influenced his inventive journey and provided him with valuable insights into hydraulic technologies.
Collaborations
Ohtsukasa has worked alongside notable colleagues, including Hiroshi Yoshinada and Kenji Okamura. These collaborations have likely fostered the exchange of ideas and contributed to the successful development of various hydraulic innovations.
Conclusion
Naritoshi Ohtsukasa stands out as a prominent figure in the arena of hydraulic inventions. His 13 patents reflect a commitment to innovation and a deep understanding of hydraulic systems. As the automotive industry continues to evolve, Ohtsukasa’s contributions will likely play a vital role in shaping the future of vehicle technology.