Location History:
- Sakado, JP (1982 - 1988)
- Saitama, JP (1987 - 1989)
- Hatoyama, JP (1989 - 1992)
Company Filing History:
11 out of 43 
3 out of 129 
2 out of 13 
Years Active: 1982-1992
Title: **Masaki Akagawa: Innovator in Secrecy and Coin Detection Technologies**
Introduction
Masaki Akagawa, an esteemed inventor based in Sakado, Japan, has made significant contributions to the fields of telecommunications and coin validation technologies. With a remarkable portfolio of 19 patents, Akagawa has consistently demonstrated his innovative spirit and technical prowess through his inventive designs and solutions.
Latest Patents
His latest inventions highlight his commitment to enhancing security and functionality. One of his notable patents is a secrecy device for wiretapping prevention and detection. This device is strategically connected between a telephone handset and its base unit. It modulates the voice signal received from the handset and facilitates communication while safeguarding it from unauthorized wiretapping. The device features a detection circuit that identifies the presence of a wiretapping telephone, generating pseudorandom data to ensure secure communication between two parties.
Another significant invention is the coin selecting apparatus. This apparatus incorporates a coin detection coil designed to output a coin detection signal that varies with the type of coin passing through a designated channel. The system includes a window device with various openings aligned with specific coin types to produce pulse signals. A timer and counter work in unison to determine the validity and type of coin, showcasing Akagawa's innovative approach to coin validation.
Career Highlights
Akagawa has had an impressive career in the tech industry. He has contributed his talents to renowned companies such as Kabushiki Kaisha Nippon Coinco and Kabushiki Kaisha Nippon Conlux. His work in these organizations has allowed him to refine his skills and innovate in areas critical for consumer electronics and security technologies.
Collaborations
Throughout his career, Akagawa has collaborated with notable individuals in the field, including Osamu Kobayashi and Osamu Sugimoto. These collaborative efforts have likely contributed to the successful development of his patents and further enhanced his inventive capabilities.
Conclusion
Masaki Akagawa's innovative contributions in technology, particularly in wiretapping prevention and coin detection, underscore his role as a key inventor in modern advancements. With his 19 patents, he continues to pave the way for security enhancements and efficient coin validation systems, solidifying his status as a prominent figure in the world of inventions.
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.