This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignee: Hitachi Construction Machinery Tierra Co., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Takeshi Ishii and an Electrically Driven Work Machine
Introduction
Takeshi Ishii is an inventor associated with Hino-cho, Japan, and Hitachi Construction Machinery Tierra Co., Ltd. His listed patent concerns safety and control features for electrically driven work machinery.
Latest Patents
Ishii is credited with 1 patent: “Electrically Driven Work Machine.” The invention describes a machine powered by an electric motor controlled by an inverter. A power feed system and driving battery device supply power to the inverter, while a control battery provides power for controlling the inverter, power feed system, and driving battery device. An opening-closing cover protects the power feed system. When the cover is opened, a control power interruption device cuts control-power supply to the relevant components, providing a safety measure during access.
Career Highlights
Ishii’s listed work connects him with Hitachi Construction Machinery Tierra Co., Ltd. His patent addresses the integration of electric drive components with a cover-linked control-power interruption mechanism.
Collaborations
Kiwamu Takahashi and Natsuki Nakamura are identified as Ishii’s coworkers. The available information does not specify their roles in the patent or whether they collaborated on it.
Conclusion
Takeshi Ishii’s listed invention focuses on an electrically driven work machine and a safety feature that interrupts control power when its protective cover is opened.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile