This inventor holds 12 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha, Other. Active years: 1995-2006.
Location History:
- Tokyo, JP (1995 - 1997)
- Kunitachi, JP (2001 - 2004)
- Yokohama, JP (2004 - 2006)
Company Filing History:
5 out of 53,226 
5 out of 6,285 
5 out of 834,350 Years Active: 1995-2006
Title: Tetsuo Katoh: Innovator in Image Forming Technology
Introduction
Tetsuo Katoh is a notable inventor based in Kunitachi, Japan. He has made significant contributions to the field of image forming technology, holding a total of 12 patents. His work focuses on improving the efficiency and effectiveness of image forming apparatuses.
Latest Patents
Among his latest patents is an innovative image forming apparatus and toner stirring method. This apparatus features a communicating portion from the first chamber to the second chamber and another from the first chamber to the third chamber, which are separated from each other. This design suppresses the active flow of fresh toner into the third chamber, where a developer with a low toner ratio and low toner concentration is stirred together with recycled toner during image formation. Another significant patent is for an image forming apparatus and method for revising image density. This system employs a two-component developing system and includes printed-sheet number counting means, developing-device drive time integrating means, and toner replenishing motor drive time integrating means. The integrated drive times are calculated to predict the toner charge quantity in the developer, allowing for adjustments to the developing bias voltage to revise image density.
Career Highlights
Tetsuo Katoh has worked with prominent companies, including Kabushiki Kaisha Toshiba. His experience in these organizations has contributed to his expertise in developing advanced image forming technologies.
Collaborations
He has collaborated with notable coworkers such as Tatsuyuki Miura and Shinichi Itoh, further enhancing his contributions to the field.
Conclusion
Tetsuo Katoh's innovative work in image forming technology has led to numerous patents that improve the efficiency of image formation processes. His contributions continue to influence the industry and pave the way for future advancements.