Company Filing History:
Years Active: 1993-1998
Title: Innovations of Takeshi Sanpei
Introduction
Takeshi Sanpei is a notable inventor based in Hino, Japan. He has made significant contributions to the field of photography, particularly in the development of black-and-white silver halide photographic materials. With a total of 5 patents to his name, Sanpei continues to influence the industry through his innovative methods.
Latest Patents
Sanpei's latest patents include a process for developing black-and-white silver halide photographic materials. This method involves using an automatic processor to develop exposed materials with a specific developer composition. The process includes supplying replenisher for the developer in a controlled amount and utilizing a hydrazine derivative along with an infectious development nucleation agent. The developer is characterized by a pH value of 10.0 to 11.2 and contains various compounds that enhance the development process.
Career Highlights
Throughout his career, Takeshi Sanpei has been associated with Konica Corporation, where he has worked on advancing photographic technologies. His expertise in the field has led to the creation of innovative solutions that improve the quality and efficiency of photographic development.
Collaborations
Sanpei has collaborated with notable coworkers such as Akira Shimizu and Shoji Nishio. Their combined efforts have contributed to the advancement of photographic technologies and the development of new methods in the industry.
Conclusion
Takeshi Sanpei's contributions to the field of photography through his patents and collaborations highlight his role as an influential inventor. His innovative methods continue to shape the future of photographic development.