Location History:
- Miyagi, JP (2000)
- Sendai, JP (1993 - 2003)
Company Filing History:
5 out of 28,566 
2 out of 40 
Years Active: 1993-2003
Title: Yasuhiro Osawa: Innovator in Optical Technology
Introduction
Yasuhiro Osawa is a prominent inventor based in Sendai, Japan. He has made significant contributions to the field of optical technology, holding a total of five patents. His innovative work focuses on enhancing light utilization efficiency through advanced optical apparatus designs.
Latest Patents
Osawa's latest patents include an optical apparatus and a method of manufacturing such an apparatus. This optical apparatus utilizes an array of light-emitting elements, such as LEDs or ELs, combined with a focusing optical system. The design incorporates recesses shaped as inverted conical frustums, which are centered at the respective light-emitting elements. This configuration allows for the collection of light and its delivery to the focusing system within narrowed solid angles, thereby improving overall light utilization efficiency. Additionally, the side walls of these recesses can be coated with a reflecting film to further enhance efficiency. Another notable invention is the LED array head, which features a base plate with protruding LED light-emitting portions. This design includes a mirror array that narrows the radiation angle of emitted light, optimizing the performance of the LED array head.
Career Highlights
Throughout his career, Yasuhiro Osawa has worked with notable companies, including Ricoh Company, Ltd. and Ricoh Research Institute of General Electronics Co., Ltd. His experience in these organizations has contributed to his expertise in optical technologies and innovations.
Collaborations
Osawa has collaborated with esteemed colleagues such as Tetsuro Saito and Shoichi Akiyama. Their joint efforts have further advanced the field of optical technology and contributed to the development of innovative solutions.
Conclusion
Yasuhiro Osawa's contributions to optical technology through his patents and collaborations highlight his role as a significant inventor in the field. His work continues to influence advancements in light utilization efficiency and optical apparatus design.