Company Filing History:
Years Active: 1979-1983
Title: Sadafumi Kitamura: Innovator in Magnetic Recording Technology
Introduction
Sadafumi Kitamura is a notable inventor based in Neyagawa, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 5 patents. His work has advanced the methods used in recording and reproducing audio and video signals.
Latest Patents
One of his latest patents is a method for recording multiplexed signals on metal evaporated tape. This innovative magnetic recording method allows for the recording of multiplex signals that contain two different frequency signals. The design utilizes a magnetic recording medium with a magnetic layer that is thinner than the recorded wavelength of each signal. The higher frequency signal is recorded at a current that exceeds 2dB above the lower limit of the recording current, while the lower frequency signal is recorded at a current that is less than half of that of the higher frequency signal.
Another significant patent is for a helical scan video tape recorder designed for recording both video and audio signals. In this system, multiple rotating magnetic heads record the video signal on magnetic tape at an angle relative to the tape's direction of travel. The audio signal is time-compressed and recorded on tracks adjacent to the video signal tracks, ensuring stable audio recording even at low tape transport speeds.
Career Highlights
Sadafumi Kitamura has been associated with Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. His work has been instrumental in developing advanced recording technologies that have applications in various media formats.
Collaborations
Throughout his career, Kitamura has collaborated with notable colleagues, including Hiroshi Taniguchi and Chojuro Yamamitsu. These collaborations have contributed to the innovative advancements in magnetic recording technology.
Conclusion
Sadafumi Kitamura's contributions to magnetic recording technology have had a lasting impact on the industry. His innovative patents continue to influence the way audio and video signals are recorded and reproduced.