Location History:
- Nara, JP (1990)
- Yamatotakada, JP (1990 - 2003)
Company Filing History:
Years Active: 1990-2003
Title: Ken Yamagishi: Innovator in Image Forming Technology
Introduction
Ken Yamagishi is a prominent inventor based in Yamatotakada, Japan. He has made significant contributions to the field of image forming technology, holding a total of 5 patents. His work focuses on enhancing the performance and efficiency of image forming apparatuses.
Latest Patents
One of Yamagishi's latest patents is an image forming apparatus with automatic density compensation. The objective of this invention is to prevent a decrease in image density at the rear end of an image. This is achieved by detecting changes in waveform in sensor outputs when a toner patch image is read by an optical sensor used for process control. The invention adjusts the difference between grid voltage and development bias voltage to maintain image quality.
Another notable patent is an image forming apparatus that includes humidity detection and toner concentration adjustment based on detected humidity. This apparatus features a developing unit that stocks a developing agent containing toner and forms a toner image on a photosensitive medium. It also includes a toner specific concentration detecting unit and a humidity detecting unit, which work together to ensure optimal toner concentration based on environmental conditions.
Career Highlights
Ken Yamagishi is currently employed at Sharp Kabushiki Kaisha Corporation, where he continues to innovate in the field of imaging technology. His work has significantly impacted the efficiency and quality of image forming devices.
Collaborations
Yamagishi has collaborated with notable coworkers, including Teruhiko Noguchi and Jitsuo Masuda. Their combined expertise has contributed to the advancement of image forming technologies.
Conclusion
Ken Yamagishi's contributions to image forming technology through his innovative patents demonstrate his commitment to enhancing the quality and efficiency of imaging devices. His work continues to influence the industry and pave the way for future advancements.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.