Location History:
- Koriyama, JP (1992 - 1993)
- Tokyo, JP (1992 - 1994)
Company Filing History:
4 out of 39,244 
2 out of 192 Years Active: 1992-1994
Title: The Innovations of Yoshihiro Oyama
Introduction
Yoshihiro Oyama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of optical scanning technology. With a total of 4 patents to his name, Oyama's work has had a lasting impact on various industries.
Latest Patents
One of his latest patents is an optical scanner that utilizes a laser diode as a light source. This innovative optical scanner includes a light source that emits a laser beam, along with an optical deflector such as a rotary polygonal mirror. This design allows for the deflection of the laser beam, producing a scanning laser beam while protecting the laser diode from overheating. This is achieved by arranging the light source in a heat-insulating chamber or by cooling it with air flow circulated by the rotation of the rotary polygonal mirror in cooperation with a curved guide plate.
Another significant invention is a compact type bar code reader. This device is designed to detect bar code symbols on the surfaces of various articles. It features a laser beam generation unit that generates a laser beam directed at the bar code symbol, along with a focus unit that determines the focus of the laser beam. The scanning pattern forming unit creates various scanning patterns of the laser beam, while the light reflection unit reflects the laser beam to and from the bar code symbol. The light collection unit gathers the reflected laser beam, which is then received by the light reception unit and converted into an electrical signal. The design of the casing ensures that all these units are efficiently arranged for optimal performance.
Career Highlights
Yoshihiro Oyama has worked with prominent companies such as Fujitsu Corporation and Copal Company Limited. His experience in these organizations has contributed to his expertise in optical technologies and innovations.
Collaborations
Throughout his career, Oyama has collaborated with talented individuals, including Tamotsu Takahashi and Takeshi Ishii. These collaborations have likely enriched his work and led to further advancements in his inventions.
Conclusion
Yoshihiro Oyama's contributions to optical scanning technology and his innovative patents demonstrate his significant role as an inventor. His work continues to influence the industry and inspire future innovations.