This inventor holds 6 USPTO granted patents and 1 EPO patent. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Jtekt Corporation, Renesas Electronics Corporation. Active years: 1997-2022.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
4 out of 21,351 
1 out of 2,468 
1 out of 7,657 
Years Active: 1997-2022
Title: The Innovations of Tadashi Kawahara
Introduction
Tadashi Kawahara is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of technology, holding a total of 6 patents. His work primarily focuses on devices that enhance the functionality and efficiency of various systems.
Latest Patents
One of his latest inventions is a rotation detection device. This device includes a rotation detection circuit, a step-up power supply circuit, a step-down power supply circuit, a first power supply path, and a second power supply path. The rotation detection circuit is designed to detect the rotation number of a motor that generates torque applied to a vehicle's steering mechanism, based on an electric signal. This electric signal is generated according to the rotation angle of the motor, which is acquired through an in-vehicle sensor. Another significant patent is a PLL synthesizer that uses a fractional division value. This phase locked loop (PLL) frequency synthesizer features a phase comparator, a voltage-controlled oscillator, a charge pump circuit, a loop filter, and a variable frequency divider that periodically changes a division value. This innovation allows for the suppression of conventionally-generated spurious components without generating additional spurious components.
Career Highlights
Throughout his career, Tadashi Kawahara has worked with prominent companies, including Mitsubishi Electric Corporation. His experience in these organizations has contributed to his expertise and the development of his innovative patents.
Collaborations
Tadashi has collaborated with notable individuals in the field, including Noriharu Suematsu and Masayoshi Ono. Their combined efforts have led to advancements in technology and innovation.
Conclusion
Tadashi Kawahara's contributions to technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements in various technological fields.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile