Location History:
- Yokohama, JP (1984)
- Kanagawa-ken, JP (2002 - 2005)
- Yokosuka, JP (2007)
- Kawasaki, JP (1990 - 2008)
Company Filing History:
8 out of 56 
4 out of 662 
1 out of 2,916 
Years Active: 1984-2008
Title: The Innovative Contributions of Toshihiko Ishigami
Introduction
Toshihiko Ishigami, an inventive mind based in Kawasaki, Japan, has made significant strides in the field of lighting technology. With a total of 12 patents to his name, his work focuses primarily on enhancing the effectiveness and efficiency of metal vapor discharge lamps.
Latest Patents
Ishigami's latest innovations include two notable patents. The first patent describes a metal vapor discharge lamp that outperforms conventional high-pressure discharge lamps by producing stronger near-infrared radiation. This lamp features a refractory light-transmitting hermetic vessel, a pair of electrodes fixed to the vessel, and a sealed discharge medium containing a halide and a rare gas. Notably, the device emits light predominantly in the near-infrared spectrum (750–1100 nm).
The second innovation is a metal halide lamp that showcases improved emission power maintenance. This device comprises a refractory, light-transmitting hermetic vessel with electrodes sealed inside, and a discharge medium that includes a halide and a rare gas. Additionally, it incorporates metal storing means that gradually discharge selected metals such as potassium, rubidium, or cesium, enhancing the overall performance of the lamp.
Career Highlights
Ishigami has had a remarkable career, contributing his talents to prestigious companies, including Harison Toshiba Lighting Corporation and Toshiba Lighting & Technology Corporation. His work in these organizations has led to the development of advanced lighting solutions that are both innovative and efficient.
Collaborations
Throughout his career, Ishigami has collaborated with talented individuals, including Mikio Matsuda and Toshio Hiruta. These collaborations have further expanded the scope of his innovations and fostered a creative environment for technological advancements.
Conclusion
Toshihiko Ishigami's contributions to lighting technology through his inventive work and patents are invaluable. His dedication to enhancing the performance of metal vapor discharge lamps is a testament to his innovative spirit and commitment to advancing the field of lighting. As the industry continues to evolve, Ishigami's work stands as a significant milestone in the pursuit of efficient lighting solutions.
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.