This inventor holds 2 USPTO granted patents. Top assignees: Pioneer Electronic Corporation, Universal Pioneer Corporation. Active years: 1986-1989.
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 2,861 
1 out of 33 Years Active: 1986-1989
Title: Tohru Nakajima: Innovator in Video Signal Technology
Introduction
Tohru Nakajima is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of video signal technology, holding a total of 2 patents. His work has focused on enhancing video signal output and improving the functionality of video disc recording and reproducing devices.
Latest Patents
One of Nakajima's latest patents is a video signal output selection circuit. This innovative circuit allows for the seamless switching of output video signals from one input source to another without losing synchronization with the video monitor. The circuit generates a first pulse signal synchronized with the vertical synchronizing signal of the first video signal. A detector circuit identifies the phase difference between this pulse signal and a second pulse signal from another video source, ensuring that switching occurs only when the phase difference is within an acceptable range.
Another significant patent is for a video disc recording and reproducing device. This device records a recognition signal alongside audio and video signals, which identifies whether the audio is in stereophonic or split mode. The device includes a selection switch that allows users to choose between different audio signal outputs, enhancing the versatility of video playback.
Career Highlights
Throughout his career, Tohru Nakajima has worked with prominent companies in the electronics industry. He has been associated with Universal Pioneer Corporation and Pioneer Electronic Corporation, where he contributed to advancements in video technology. His expertise in video signal processing has made him a valuable asset in these organizations.
Collaborations
One of Nakajima's notable collaborators is Hisao Nakamura. Their partnership has likely fostered innovation and development in the projects they have undertaken together.
Conclusion
Tohru Nakajima's contributions to video signal technology through his patents and work with leading companies highlight his role as an influential inventor. His innovations continue to impact the way video signals are processed and utilized in modern technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile