Company Filing History:
14 out of 42,485 
2 out of 208 
1 out of 522 
Years Active: 1981-1990
Title: Masahiko Achiha: Innovator in Video Signal Processing
Introduction
Masahiko Achiha is a notable inventor based in Iruma, Japan. He has made significant contributions to the field of video signal processing, holding a total of 14 patents. His work has greatly influenced the technology used in video recording and reproduction.
Latest Patents
One of Achiha's latest patents is a video signal processing apparatus for video tape recorders. This invention focuses on recording and reproducing composite color television signals. It utilizes a modulated chrominance signal formed by modulating a color subcarrier with a color difference signal. The apparatus includes a YC separation circuit that separates the composite color television signal into Y- and C-signals. This separation is crucial for reconstructing a color picture without cross talk issues. Another significant patent is a detection circuit for TV receivers, which generates luminance or chrominance signals by processing video signals from two adjoining frames. This circuit includes various components such as a synchronization separation circuit and a frequency division circuit, which work together to determine whether the received TV signal is standard or nonstandard.
Career Highlights
Throughout his career, Achiha has worked with prominent companies such as Hitachi, Ltd. and Hitachi Denshi Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas in video technology.
Collaborations
Achiha has collaborated with notable individuals in the field, including Kazuo Ishikura and Isao Nakagawa. These partnerships have contributed to the advancement of video signal processing technologies.
Conclusion
Masahiko Achiha's contributions to video signal processing have had a lasting impact on the industry. His innovative patents and collaborations with esteemed colleagues highlight his dedication to advancing technology in this field.
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.