Location History:
- Higashiosaka, JA (1977)
- Higashiosaka, JP (1980)
- Kadoma, JP (1982)
Company Filing History:
Years Active: 1977-1982
Title: Kouichi Yamada: Innovator in Magnetic Recording Technology
Introduction
Kouichi Yamada is a notable inventor based in Higashiosaka, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 4 patents. His work has advanced the capabilities of tape recording and reproducing systems, showcasing his expertise and innovative spirit.
Latest Patents
Yamada's latest patents include a speed control system for a multiple speed tape recording and reproducing apparatus. This system utilizes a transducer head to reproduce a tape speed indicative signal recorded along the edge of a recording tape. The frequency of this signal is compared with several reference values to determine its corresponding frequency band. If the reproduced speed signal falls outside the predetermined frequency band, a motor drive signal is generated to adjust the tape speed accordingly.
Another significant patent involves a magnetic tape recording and reproducing apparatus that features means for recording a cue-signal. This cue-signal marks a specific point on the magnetic tape where video signals are recorded by a rotary magnetic head. The cue-signal is recorded using a full erasing head, which receives a cue-signal current at a frequency lower than that of the erasing current. This innovative approach enhances the synchronization of the rotary head with the tape movement.
Career Highlights
Kouichi Yamada is currently employed at Matsushita Electric Industrial Co., Ltd., a company renowned for its advancements in electronic technology. His work at Matsushita has allowed him to collaborate with other talented individuals in the field, furthering the development of innovative recording technologies.
Collaborations
Some of Yamada's notable coworkers include Toshiomi Yabu and Tatsuo Wada. Their collaborative efforts have contributed to the success of various projects within the company, fostering an environment of innovation and creativity.
Conclusion
Kouichi Yamada's contributions to magnetic recording technology have established him as a prominent figure in the field. His innovative patents and collaborative work at Matsushita Electric Industrial Co., Ltd. continue to influence the industry.
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.