Location History:
- Katsuta, JP (1981)
- Ibaraki, JP (1992 - 2006)
Company Filing History:
3 out of 1,267 
1 out of 42,508 
1 out of 129 Years Active: 1981-2006
Title: Masami Ishikawa: Innovator in Image Forming Technology
Introduction
Masami Ishikawa is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of image forming technology, holding a total of 4 patents. His work has been instrumental in advancing the efficiency and accuracy of image formation processes.
Latest Patents
Ishikawa's latest patents include an innovative image forming method and an image forming apparatus. In his image forming method, a first developing roller is positioned on the upstream side of a photosensitive body, rotating in the opposite direction. The peripheral speed ratio of the roller to the photosensitive body ranges from 0.8 to 2.0. Additionally, a second developing roller is located on the downstream side, rotating in the same direction, with a peripheral speed ratio ranging from 1.05 to 2.0. The shape coefficient SF of the toners in the two-component developing agent is specified to range from 120 to 170, while the shape coefficient SF ranges from 110 to 130. Furthermore, he has developed a device for measuring surface potentials at a photosensitive body, which includes a potential sensor and sample hold circuits. This device effectively eliminates eccentricity-induced errors and noise, ensuring accurate surface potential measurements.
Career Highlights
Throughout his career, Ishikawa has worked with prominent companies such as Hitachi Koki Co., Ltd. and Hitachi, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in his field.
Collaborations
Ishikawa has collaborated with several talented individuals, including Minoru Ohshima and Tsukasa Ogawa. Their combined expertise has fostered a creative environment that has led to significant advancements in image forming technologies.
Conclusion
Masami Ishikawa's contributions to image forming technology are noteworthy, with his innovative patents and collaborations highlighting his impact in the field. His work continues to influence advancements in imaging processes, showcasing the importance of innovation in technology.