Location History:
- Funabashi, JP (1995)
- Narashino, JP (1989 - 2014)
Company Filing History:
7 out of 493 
5 out of 42,485 
Years Active: 1989-2014
Title: The Innovative Mind of Takeshi Obata: Advancements in Rotary Electric Machines
Introduction: Takeshi Obata, an accomplished inventor from Narashino, Japan, holds a remarkable portfolio of 12 patents. His innovative work primarily focuses on enhancing the reliability and efficiency of rotary electric machines. Obata's contributions to the field underscore his commitment to technological advancement and innovation.
Latest Patents: Among his latest achievements, Obata has developed two significant patents. The first, titled "Apparatus and Method for Detecting Partial Discharge at Turn-to-Turn Insulation in Motor," features a surge generator that applies pulse voltage to the motor's windings. This apparatus includes a partial discharge current detector that identifies partial discharge currents between winding turns. The surge generator is designed to repeat at frequencies ranging from 50 Hz to 20 kHz, accurately mirroring conditions experienced when a motor is driven by an inverter.
The second patent, “Rotary Electric Machine,” introduces a design aimed at enhancing reliability while reducing the size of the machine. This invention incorporates a stator and a rotor equipped with an iron core featuring multiple axial holes. Conductor bars are inserted into these holes, and end rings join mechanically and electrically through friction stir welding. This configuration not only improves heat radiation capabilities but also increases design flexibility around the stator and rotor.
Career Highlights: Obata has had a significant career with prominent companies in the industry. Notably, he has worked with Hitachi Industrial Equipment Systems Co., Ltd. and Hitachi, Ltd., where he gained invaluable experience that has informed his innovative projects and inventions.
Collaborations: Throughout his career, Obata has collaborated with talented individuals, including Tadahiro Shimozono and Koichiro Saito. These collaborations have contributed to his success in developing cutting-edge technologies and patents in the field of electrical engineering.
Conclusion: Takeshi Obata's dedication to innovation in rotary electric machines is evident through his 12 patents and collaborative efforts. His developments in detecting partial discharge and improving design reliability have set a benchmark in the industry. As a pioneering inventor, Obata continues to inspire future generations of engineers and inventors alike.
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.