This inventor holds 2 USPTO granted patents. Top assignees: Mitsubishi Petrochemical Company Limited, Other. Active years: 1991-1994.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Chiba, JP (1991)
- Ibaraki, JP (1994)
Company Filing History:
2 out of 546 
1 out of 834,601 Years Active: 1991-1994
Title: Toyoshi Ohashi: Innovator in Photoconductive Technologies
Introduction
Toyoshi Ohashi is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of photoconductive materials, holding a total of 2 patents. His work focuses on enhancing the functionality and efficiency of photoconductive compositions.
Latest Patents
Ohashi's latest patents include a photoconductive phthalocyanine composition. This composition comprises 100 parts by weight of an unsubstituted phthalocyanine derivative and from 0.001 to 5 parts by weight of a nitro- or halogen-substituted phthalocyanine derivative. Additionally, it includes from 0.01 to 10 parts by weight of a phthalocyanine derivative with at least 4 electron-attracting groups. This innovative composition is designed to produce digital signals regardless of whether the input light is digital or analog, making it useful for both digital recording systems and conventional photocopiers. Another significant patent is for an optically functional element that includes an aromatic vinylene sulfide polymer. This element undergoes optical changes with low energy at a high rate, providing high contrast before and after the changes.
Career Highlights
Throughout his career, Toyoshi Ohashi has worked with Mitsubishi Petrochemical Company Limited, where he has contributed to advancements in photoconductive technologies. His expertise in this area has positioned him as a key figure in the development of innovative materials.
Collaborations
Ohashi has collaborated with notable individuals in his field, including Eiichi Kobayashi and Mitsutaka Miyabayashi. These collaborations have further enriched his work and contributed to the success of his inventions.
Conclusion
Toyoshi Ohashi's contributions to photoconductive technologies demonstrate his innovative spirit and commitment to advancing the field. His patents reflect a deep understanding of materials science and a dedication to improving the quality of optical devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile