Company Filing History:
Years Active: 1982-1983
Title: Norihiko Itoh: Innovator in Tape Drive Technology
Introduction
Norihiko Itoh is a prominent inventor based in Tokorozawa, Japan. He has made significant contributions to the field of tape drive technology, holding 2 patents that showcase his innovative approach to engineering.
Latest Patents
One of his latest patents is a "Tape drive control system for pinch roller-less type tape recorder." This invention implements tape drive through the frictional force between the capstan and tape. A mode instruction circuit determines the operational mode of a capstan motor drive circuit, which operates the capstan motor to rotate the conveying capstan. Additionally, tape run detection means are employed to monitor the actual tape condition, allowing the mode instruction circuit to respond to both the outputs of the tape run detection means and switch inputs to control the capstan drive's operational mode.
Another notable patent is the "Friction force drive capstan tape recorder." This device features movable arms that tension the tape between an idler and a drive capstan. The displacement of these arms is sensed to provide an input signal to a control circuit, which varies the rotational torque of the take-up reel motor. This closed-loop system maintains constant tension on the tape while also sensing the end of the tape. Freely rotatable tape shifters minimize tension loss, and the movable arms can be outwardly displaced to facilitate tape loading.
Career Highlights
Norihiko Itoh is associated with Pioneer Electronic Corporation, where he has been instrumental in developing advanced tape drive systems. His work has significantly impacted the efficiency and functionality of tape recorders.
Collaborations
Throughout his career, Itoh has collaborated with notable colleagues, including Yoshiyuki Takizawa and Takashi Kashiwazaki. Their combined expertise has contributed to the success of various projects within the company.
Conclusion
Norihiko Itoh's innovative contributions to tape drive technology have established him as a key figure in the field. His patents reflect a deep understanding of engineering principles and a commitment to advancing technology.