Location History:
- Tagajo, JP (1988)
- Tokyo, JP (1989)
- Miyagi, JP (1987 - 1992)
Company Filing History:
Years Active: 1987-1992
Title: Tadao Igarashi: Innovator in Magnetic Tape Technology
Introduction
Tadao Igarashi is a prominent inventor based in Miyagi, Japan. He has made significant contributions to the field of magnetic tape technology, holding a total of 8 patents. His innovative designs have enhanced the functionality and efficiency of tape cartridges and magnetic tape cassettes.
Latest Patents
Igarashi's latest patents include a tape-cartridge case with a thin, single-layer side wall designed for reading UPC codes. This innovative case comprises a lower plate, an upper plate, and side walls that project from these plates. When a tape cartridge is placed inside, the side surfaces are surrounded by the two side walls. Notably, only one of these walls opposes a bar code on the tape cartridge, allowing for quick and accurate reading by a bar-code reader.
Another significant patent is for a magnetic tape cassette featuring reel locks controlled by an optical tape. This cassette includes a compact reel lock mechanism with a pair of reel lock arms that engage with the outer peripheries of tape reels. A sliding member serves as a cover for a single opening through which an optical tape end detecting element is inserted. When the cassette is not in use, the sliding member closes the opening, and the reel lock arms restrict the rotation of the reels. Conversely, when the cassette is inserted into a recording or reproducing apparatus, the sliding member is pushed up, opening the mechanism and allowing for seamless operation.
Career Highlights
Igarashi has dedicated his career to advancing magnetic tape technology. He works at Sony Corporation, a leading company in the electronics industry. His work has not only contributed to the company's success but has also influenced the broader field of audio and video technology.
Collaborations
Throughout his career, Igarashi has collaborated with notable colleagues, including Takashi Oogi and Haruyuki Karibe. These collaborations have fostered innovation and creativity in their projects, leading to groundbreaking advancements in their field.
Conclusion
Tadao Igarashi's contributions to magnetic tape technology through his patents and work at Sony Corporation highlight his role as a key innovator in the industry. His inventions continue to impact the way we interact with audio and video media today.
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.