This inventor holds 1 USPTO granted patent. Top assignee: Asahi Kasei Kogyo Kabushiki Kaisha. Active years: 1978.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1978
Title: Hiroshi Takano: Innovator in Photosensitive Composition
Introduction
Hiroshi Takano is a notable inventor based in Gotenba, Japan. He has made significant contributions to the field of photosensitive materials, particularly through his innovative patent.
Latest Patents
Hiroshi Takano holds a patent for a non-silver salt type photosensitive composition. This novel composition includes several key components: (A) N,N'-diphenyl-p-phenylenediamine as a color developing agent and tetramethylthiuram disulfide, which functions unexpectedly as another color developing agent rather than merely a storage stabilizer. (B) An organic halide compound serves as a photoactivator. (C) A salicylic acid derivative acts as a storage stabilizer for unexposed photosensitive material. (D) Thiourea functions as both an anti-foggant during and after image formation and as a contrasting agent, rather than just a storage stabilizer. (E) At least one member from a group consisting of (i) 2-methylindole, (ii) 2-mercaptothiazoline, and (iii) p-diethylaminobenzaldehyde is included as a color tone adjusting agent. The photosensitive material or film derived from this composition exhibits excellent storage stability in the unexposed state and can produce a blackish brown image with high photographic density and contrast, while minimizing fog occurrence.
Career Highlights
Hiroshi Takano is associated with Asahi Kasei Kogyo Kabushiki Kaisha, where he has been able to apply his expertise in developing advanced photosensitive materials. His work has contributed to the company's reputation for innovation in the field.
Collaborations
Hiroshi has collaborated with notable coworkers, including Yoshinobu Ito and Tadao Matsushika, enhancing the development of his patented technologies.
Conclusion
Hiroshi Takano's contributions to the field of photosensitive compositions demonstrate his innovative spirit and commitment to advancing technology. His patent reflects a significant step forward in the development of high-quality photographic materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile