Company Filing History:
Years Active: 1990-1992
Title: Yasuji Takagi: Innovator in Image Forming Technology
Introduction
Yasuji Takagi is a notable inventor based in Matsudo, Japan. He has made significant contributions to the field of image forming technology, holding a total of 4 patents. His work primarily focuses on enhancing the functionality and efficiency of toner cartridges and image forming apparatuses.
Latest Patents
One of Takagi's latest patents is for a toner cartridge designed for an image forming apparatus. This innovative structure allows for a toner cartridge to be removably mounted on a developing unit. It features a mechanism that prevents the toner end mode from being reset unless the empty cartridge is replaced with a full one. The cartridge includes a member that can reset the toner end mode only when it is loaded into the cartridge container for the first time. This member is detected by a sensor upon insertion, ensuring that the cartridge is properly recognized.
Another significant patent involves an image forming apparatus that corrects various image forming factors. This apparatus is applicable to electrophotographic copiers, facsimile machines, and laser printers. It adjusts the bias voltage for development, amount of charge, and exposure based on the inactive state of the photoconductive element. If the inactive state is brief, the image forming procedure begins immediately. However, if the inactive state is prolonged, the apparatus corrects the image forming factors before starting the procedure.
Career Highlights
Yasuji Takagi is currently employed at Ricoh Company, Ltd., where he continues to innovate in the field of imaging technology. His work has significantly impacted the efficiency and reliability of image forming devices.
Collaborations
Throughout his career, Takagi has collaborated with notable colleagues, including Kouji Ishigaki and Yoshihide Sonoda. These collaborations have contributed to the advancement of technology in their field.
Conclusion
Yasuji Takagi's contributions to image forming technology through his patents and work at Ricoh Company, Ltd. highlight his role as an influential inventor. His innovative designs and mechanisms continue to shape the future of imaging solutions.