Company Filing History:
3 out of 800 
1 out of 3,252 
1 out of 27,375 
Years Active: 1991-2005
Title: Tetsuro Shimmura: Innovator in Electric Rotating Machines
Introduction
Tetsuro Shimmura is a notable inventor based in Toyohashi, Japan. He has made significant contributions to the field of electric rotating machines, holding a total of 3 patents. His work focuses on improving the efficiency and performance of electric motors, particularly in automotive applications.
Latest Patents
Shimmura's latest patents include a dynamo-electric machine and a fan motor for vehicles. This innovative electric rotating machine reduces vibration and noise by narrowing the variation width of the current waveform that occurs during a short circuit state in the coils. The design features a commutator with twelve segments, where a pair of positive and negative brushes are press-contacted. The unique arrangement of segments allows for a temporal deviation in the timing of the short circuit state, leading to a significant reduction in vibration and noise, thereby extending the life of the machine.
Another notable patent is for a brushless motor that incorporates a rotor with permanent magnets and a coil. This motor design includes a switching element connected to a power source and a magnetic sensor that detects the position of the rotor's permanent magnets. A delay circuit is also integrated to enhance the performance of the motor by broadening the apparent hysteresis width of the magnetic sensor, thus preventing issues related to disabled rotor rotation.
Career Highlights
Throughout his career, Tetsuro Shimmura has worked with prominent companies such as Asmo Co., Ltd. and Nippondenso Co., Ltd. His experience in these organizations has contributed to his expertise in electric motor technology and innovation.
Collaborations
Shimmura has collaborated with notable colleagues, including Masashi Nakata and Takashi Hara. Their combined efforts have led to advancements in the field of electric rotating machines.
Conclusion
Tetsuro Shimmura's contributions to electric rotating machines have significantly impacted the automotive industry. His innovative patents demonstrate a commitment to enhancing motor performance and efficiency.
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.