Company Filing History:
Years Active: 1987-2002
Title: Innovations by Yoshimi Hakamata
Introduction
Yoshimi Hakamata is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of vacuum circuit-breakers and related technologies. With a total of 18 patents to his name, Hakamata's work has had a substantial impact on the industry.
Latest Patents
Hakamata's latest patents include a vacuum circuit-breaker, a vacuum bulb for use therein, and electrodes thereof. The invention aims at providing a vacuum circuit-breaker, a vacuum valve used therein, and electrodes for the vacuum valve, which can reduce the manufacturing cost while being of high performance and compact in size. The invention resides in a vacuum circuit-breaker, a vacuum valve, and electrodes for the vacuum valve, characterized in that fixed and movable electrodes each comprise arc electrodes, whose entire surfaces, mutually facing each other, are made of an alloy containing a refractory metal and a highly conductive metal. Additionally, electrode rods of a highly conductive metal support the respective arc electrodes, and each arc electrode and the mating electrode rod are integrally formed by means of solid-phase diffusion bonding. Another notable patent is for a vacuum switch and a vacuum switchgear using the same. This invention discloses a vacuum insulation switch provided with a movable electrode, a stationary electrode, and an earthing electrode, which are insulated from each other in a vacuum container made of a conductive material that is earthed. Utilizing excellent vacuum insulation, the switch is drastically miniaturized, and the number of constituent parts is reduced, thereby decreasing the manufacturing cost of the switch and the switchgear.
Career Highlights
Hakamata is currently employed at Hitachi, Ltd., where he continues to innovate and develop advanced electrical solutions. His work has been instrumental in enhancing the efficiency and reliability of electrical systems.
Collaborations
Some of Hakamata's notable coworkers include Toru Tanimizu and Yukio Kurosawa, who have collaborated with him on various projects and patents.
Conclusion
Yoshimi Hakamata's contributions to the field of electrical engineering through his innovative patents have significantly advanced the technology of vacuum circuit-breakers and related systems. His work continues to influence the industry and pave the way for future innovations.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.