This inventor holds 8 USPTO granted patents. Top assignees: Koito Manufacturing Company, Ltd., Koito Seisakusho Co., Ltd.. Active years: 1989-2006.
Company Filing History:
7 out of 2,310 
1 out of 59 Years Active: 1989-2006
Title: Yasuyoshi Numajiri: Innovator in Vehicle Lighting Technology
Introduction
Yasuyoshi Numajiri is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of vehicle lighting technology, holding a total of 8 patents. His innovative designs focus on enhancing the functionality and efficiency of vehicle headlamp systems.
Latest Patents
Numajiri's latest patents include a vehicle headlamp system and a dimming-type vehicle headlamp. The vehicle headlamp system features lamp units that radiate a beam ahead of a vehicle in a specific light distribution pattern, all housed within a lamp body. The illumination of the auxiliary lamp units is intelligently controlled based on driving conditions. This system allows for a gradual dimming of the light by decreasing the voltage applied to the light sources. When the voltage drops to a certain threshold, it is immediately controlled to zero, resulting in a smooth transition of light rather than a sudden extinguishing. This method prevents any abrupt changes in light quantity, ensuring a safer driving experience.
Additionally, his electric discharge lamp apparatus incorporates an arc tube enclosed in an ultraviolet-ray shielding globe. This design includes a metal lead support and a focusing ring made of synthetic resin. The structure ensures that the electrically-discharge axis of the arc tube is accurately positioned, enhancing the overall performance of the lamp.
Career Highlights
Throughout his career, Yasuyoshi Numajiri has worked with notable companies such as Koito Manufacturing Company, Ltd. and Koito Seisakusho Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to advancements in vehicle lighting technology.
Collaborations
Numajiri has collaborated with esteemed colleagues, including Shinichi Irisawa and Kunimasa Mochiduki. Their combined expertise has fostered innovation in the field, leading to the development of cutting-edge lighting solutions.
Conclusion
Yasuyoshi Numajiri's contributions to vehicle lighting technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the design and functionality of vehicle headlamp systems, ensuring safer driving experiences for all.