This inventor holds 1 USPTO granted patent. Top assignees: Hitachi Microcomputer Engineering, Ltd., Hitachi, Ltd.. Active years: 1994.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 149 
1 out of 42,731 
Years Active: 1994
Title: Katsuyoshi Yamashige: Innovator in Video Signal Technology
Introduction
Katsuyoshi Yamashige is a distinguished inventor hailing from Takasaki, Japan. He has made significant contributions to the field of video signal technology, particularly through his innovative patent in carrier signal generation.
Latest Patents
Yamashige holds a notable patent for a carrier signal generating circuit in video signal recording/reproducing. This invention describes a video signal apparatus that includes a voltage-controlled oscillator (VCO) capable of generating a signal with a frequency at least twice that of the carrier signal. This design is essential for converting signals to a lower band with a sub-carrier in the NTSC system. The patent outlines various components including a one-half divider circuit, a delayed flip-flop circuit, a phase comparator circuit, and a control voltage application system that enhances the efficiency and reliability of video signal processing.
Career Highlights
Throughout his career, Katsuyoshi Yamashige has worked with prominent companies in the industry. His experience includes working at Hitachi, Ltd. and Hitachi Microcomputer Engineering, Ltd., where he expanded his expertise in electronics and video technology. Yamashige's insights and innovations have had a lasting impact on the development of video recording and reproducing systems.
Collaborations
Yamashige has collaborated with respected colleagues, including Norihisa Yamamoto and Hirokazu Kitamura. Their combined efforts in the field of video technology have contributed to advancements that support the evolving demands of media consumption.
Conclusion
Katsuyoshi Yamashige's work exemplifies the spirit of innovation within the realm of video signal technology. His patent for the carrier signal generating circuit showcases his ability to solve complex technical challenges, making a lasting contribution to the industry. As technology continues to evolve, the foundations laid by inventors like Yamashige will remain crucial for future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile