This inventor holds 3 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.. Active years: 1998-2006.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Hitachiohta, JP (1998)
- Hitachiota, JP (1999)
- Chiyoda-ku, JP (2006)
Company Filing History:


Years Active: 1998-2006
Title: Syouju Masumoto: Innovator in Electric Machine Technology
Introduction
Syouju Masumoto, an accomplished inventor based in Hitachiohta, Japan, has made significant contributions to the field of electrical engineering. With a portfolio that includes three patents, Masumoto has been at the forefront of innovations in multi-phase alternating-current technologies and protective circuitry mechanisms.
Latest Patents
Masumoto’s recent patents demonstrate his commitment to advancing electric machine technology. One notable invention is the “Multi-phase Alternating-current Rotational Electric Machine.” This design features semiconductor switching devices that are electrically insulated from heat sinks, ensuring that the heat sinks are grounded to the housing while remaining thermally separated in each phase.
Another significant innovation is his “Charging Generator Having a Short Protection Circuit.” This patent introduces a short protection circuit that periodically supplies a reset pulse, enabling an electric power element to activate only during the reset pulse period. This mechanism also allows for the detection of short circuits while turning off the electric power transistor, which is crucial when a field coil is under a short-circuit condition. The design reduces the reset pulse cycle during such events, effectively preventing excessive heat generation in the electric power element.
Career Highlights
Throughout his career, Syouju Masumoto has worked with reputable organizations such as Hitachi, Ltd. and Hitachi Car Engineering Co., Ltd. His experiences at these companies have greatly influenced his inventive capabilities and have provided him with the platform to introduce groundbreaking technologies.
Collaborations
Masumoto has collaborated with notable colleagues, including Naoyuki Takahashi and Yoshimasa Takahashi. These partnerships have likely fostered innovative ideas and advancements in their shared field of expertise.
Conclusion
Syouju Masumoto's contributions to electric machine technology are marked by his innovative patents and collaborative efforts. His work not only showcases the potential of advancements in electrical systems but also serves as an inspiration for future inventors in the field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile