Location History:
- Yokohama, JP (1987 - 1990)
- Kanagawa-ken, JP (2003 - 2004)
Company Filing History:
Years Active: 1987-2004
Title: Hisashige Fujiwara: Innovator in Tape Cassette Technology
Introduction
Hisashige Fujiwara is a notable inventor based in Kanagawa-ken, Japan. He has made significant contributions to the field of audio technology, particularly in the development of tape cassettes. With a total of 5 patents to his name, Fujiwara has demonstrated a commitment to innovation and excellence in his work.
Latest Patents
One of Fujiwara's latest inventions is a tape cassette made of high transparency material. This innovative design features a cassette case with multiple face portions, including a top face, under face, front face, rear face, and right and left side face portions. The cassette contains a pair of supply and take-up tape containers, with a tape wound around a pair of reels. The design includes a first wall portion that connects the rear and right side face portions, forming part of the take-up side tape container. Additionally, a second wall portion connects the rear and left side face portions, forming part of the supply side tape container. A first prism portion extends from the rear face portion to the right side face portion, allowing for the refraction or reflection of light from a light emission element of a recording and reproducing apparatus, which detects the presence and absence of the tape cassette.
Another patent by Fujiwara involves a tape cassette that incorporates sensor optical path holes on respective wall portions. These holes are aligned in a straight line, connecting the position of a light emission element with a light reception element. This design allows light from the emission element to be introduced into the tape container, while light passing through the tape running path exits the container to reach the light reception element. A light shielding member is bonded around the sensor optical path hole to enhance the light shielding effect immediately after the light exits the tape container.
Career Highlights
Fujiwara is currently employed at the Victor Company of Japan, Limited, where he continues to innovate and develop new technologies in the audio industry. His work has significantly impacted the design and functionality of tape cassettes, making them more efficient and user-friendly.
Collaborations
Throughout his career, Fujiwara has collaborated with talented individuals such as Shigeru Ishikawa and Hiroyuki Umeda. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the field.
Conclusion
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.