This inventor holds 6 USPTO granted patents and 5 published patent applications. Top assignees: Konica Corporation, Konishiroku Photo Industry Co., Ltd.. Active years: 1989-1992.
Location History:
- Hachioj, JP (1990)
- Hachioji, JP (1989 - 1992)
- Fuchu, JP (1992)
- Kunitachi, JP (1992)
Company Filing History:
5 out of 3,106 
1 out of 1,252 
Years Active: 1989-1992
Title: Jun-ichi Hamada: Innovator in Image Forming Technology
Introduction
Jun-ichi Hamada is a notable inventor based in Hachioji, Japan. He has made significant contributions to the field of image forming technology, holding a total of 6 patents. His work focuses on improving the efficiency and effectiveness of image forming apparatuses.
Latest Patents
Hamada's latest patents include an innovative image forming apparatus that features a developer deterioration detecting device. This apparatus is designed to detect the deterioration of developer contained in a developing unit. When deterioration is detected, the toner is discharged from the developing unit through the surface of an image carrying member. The apparatus is equipped with a sensor that measures toner concentration in the developer, a drive controller that regulates the supply amount of toner based on this concentration, and a calculating unit that determines the average toner supply over a predetermined period. Additionally, a detecting unit compares the average toner supply with reference data stored in memory to identify any deterioration in the developer.
Another significant patent is for an image forming apparatus that can create toner images on various types of recording materials. This invention includes a transfer device with a transfer belt that brings the recording material into contact with the imaging surface of a photoreceptor, allowing the toner image to be transferred effectively. The apparatus also features a charging device that charges the recording material before the toner image is transferred, with the type of recording material being detected to control the charging process accordingly.
Career Highlights
Throughout his career, Jun-ichi Hamada has worked with prominent companies in the imaging industry, including Konica Corporation and Konishiroku Photo Industry Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced imaging technologies.
Collaborations
Hamada has collaborated with notable colleagues such as Yukio Okamoto and Mitsuo Motohashi. Their combined efforts have furthered advancements in the field of image forming technology.
Conclusion
Jun-ichi Hamada's innovative contributions to image forming technology have established him as a key figure in the industry. His patents reflect a commitment to enhancing the functionality and reliability of imaging systems.