This inventor holds 3 USPTO granted patents. Top assignees: Sharp Kabushiki Kaisha Corporation, Other. Active years: 1990-2013.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Nara, JP (1990)
- Yamatokooriyama, JP (2004)
- Osaka, JP (2013)
Company Filing History:
3 out of 25,974 
1 out of 834,570 Years Active: 1990-2013
Title: Toshiya Tsukao: Innovator in Wave Detection and High-Frequency Circuits
Introduction
Toshiya Tsukao is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of electronics, particularly in wave detection and high-frequency circuits. With a total of 3 patents to his name, Tsukao's work has had a considerable impact on the industry.
Latest Patents
One of Tsukao's latest patents is a wave detector circuit that addresses the temperature dependence of detection characteristics. This innovation suppresses the shift in detected output caused by temperature changes in the wave detector diode. By utilizing a bias resistor and/or a load resistor made from a resistive element with a high temperature coefficient, Tsukao effectively cancels out the temperature-induced shifts in detected output.
Another significant patent is related to a heterojunction bipolar transistor (HBT) and its manufacturing method. This patent describes the formation of a platinum alloyed reaction layer under the base ohmic electrode, which extends through a base protective layer to reach the base layer. Additionally, a platinum alloyed reaction layer is formed under the emitter ohmic electrode, which is confined to a second emitter contact layer. This innovative approach reduces manufacturing costs while ensuring successful contact characteristics for the HBT.
Career Highlights
Throughout his career, Toshiya Tsukao has worked with prominent companies, including Sharp Corporation. His expertise in electronics and circuit design has allowed him to contribute to various projects and advancements in technology.
Collaborations
Tsukao has collaborated with notable colleagues such as Toshiyuki Shinozaki and Norio Akamatsu. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Toshiya Tsukao's contributions to wave detection and high-frequency circuits exemplify his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology in the electronics field. Tsukao's work continues to influence the industry and inspire future innovations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile