Location History:
- Minami-ashigara, JA (1978)
- Kanagawa,, JP (1990)
- Kanagawa, JP (1983 - 2006)
- Minami-ashigara, JP (1981 - 2011)
Company Filing History:
41 out of 16,458 
2 out of 16,042 
1 out of 116 
Years Active: 1978-2011
Title: The Innovative Contributions of Kunio Ishigaki in Photographic Technology
Introduction: Kunio Ishigaki, based in Kanagawa, Japan, is a prominent inventor with an impressive portfolio of 43 patents. His work primarily focuses on advancements in silver halide photographic materials, reflecting a significant impact on the photography industry. His latest patents showcase innovations that enhance the functionality and performance of photographic products.
Latest Patents: Ishigaki's recent patents include a silver halide photographic light-sensitive material that features at least one silver halide emulsion layer along with a hydrophilic colloid layer. This material contains a silver bromide content ranging from 40 to 90 mol% and is spectrally sensitized with a particular dye. Another notable patent reveals a silver halide photographic light-sensitive material that incorporates at least one hydrazine derivative in the emulsion layer or hydrophilic colloid layer, along with a benzotriazol compound. This invention not only provides superior residual color properties but also maintains stable photographic performance over time with a reduced silver amount.
Career Highlights: Ishigaki's career has been marked by his tenure at notable companies, including Fuji Photo Film Company, Limited and Fujifilm Corporation. His contributions have been pivotal in developing high-quality photographic materials that continue to influence the industry.
Collaborations: Throughout his career, Kunio Ishigaki has collaborated with esteemed professionals such as Takashi Naoi and Taku Nakamura. These collaborations have helped advance the research and development of innovative photographic technologies.
Conclusion: Kunio Ishigaki's work exemplifies the spirit of innovation in the field of photography. With over 43 patents to his name, his contributions to silver halide photographic materials are invaluable. As technology continues to evolve, Ishigaki's innovations will undoubtedly remain influential in shaping the future of photographic technology.
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.