Company Filing History:
2 out of 13,402 
2 out of 398 Years Active: 1989-1991
Title: Hirofumi Yamagishi: Innovator in Automotive Lighting Technology
Introduction
Hirofumi Yamagishi is a notable inventor based in Isehara, Japan. He has made significant contributions to the field of automotive lighting, holding 2 patents that showcase his innovative designs and engineering expertise.
Latest Patents
Yamagishi's latest patents include an automotive headlamp unit with an aiming adjustment lid. This headlamp unit features a lamp housing that is integrally formed with a front lens. It includes a reflector and a lamp bulb as a light source, along with an aiming adjustment device that allows for tilting the lamp housing about horizontal and vertical axes. This design ensures that the lamp housing can be pre-adjusted to achieve an optimum luminous intensity distribution pattern, making it easier for manufacturers and repair shops to perform aiming adjustments.
Another significant patent is for a projector-type headlamp for vehicles. This innovative design incorporates a discharge lamp with a single color temperature, positioned at one of the foci of the reflective surface. The other focus contains a shade that shapes the reflected light beam, allowing for a well-defined luminous intensity distribution pattern without color dispersion. This advancement enhances the efficiency and effectiveness of vehicle lighting.
Career Highlights
Throughout his career, Yamagishi has worked with prominent companies in the automotive industry, including Nissan Motor Company Limited and Ichikoh Industries, Ltd. His experience in these organizations has contributed to his expertise in automotive lighting technology.
Collaborations
Yamagishi has collaborated with notable colleagues such as Shigenobu Ohtsuka and Youichi Kikuchi. Their combined efforts have further advanced the field of automotive lighting.
Conclusion
Hirofumi Yamagishi's contributions to automotive lighting technology through his innovative patents have significantly impacted the industry. His work continues to influence the design and functionality of vehicle headlamps, ensuring safer and more efficient driving experiences.