This inventor holds 1 USPTO granted patent. Top assignees: Kyocera Corporation, Takao Kawamura. Active years: 1987.
Company Filing History:
1 out of 6,913 
1 out of 5 Years Active: 1987
Title: Keibun Ejima: Innovator in Electrophotographic Technology
Introduction
Keibun Ejima is a notable inventor based in Kagoshima, Japan. He has made significant contributions to the field of electrophotographic technology, particularly through his innovative patents. His work focuses on improving the materials and processes used in the production of electrophotographic sensitive members.
Latest Patents
Ejima holds a patent for an electrophotographic sensitive member. This invention relates to advancements in substrates used for creating a photoconductive layer made with amorphous silicon. The patent describes a substrate that enhances moldability, corrosion resistance, strength, and charging electric potential. Specifically, it involves using an aluminum material containing iron and manganese at a weight percentage of 0.30 or less. Additionally, the substrate's surface roughness is specified to be 0.5 S or less, or it may include an aluminum substrate with magnesium at a weight percentage ranging from 0.5 to 10.0%.
Career Highlights
Throughout his career, Keibun Ejima has worked with prominent companies, including Kyocera Corporation. His experience in these organizations has contributed to his expertise in the field of electrophotography.
Collaborations
Ejima has collaborated with notable individuals such as Takao Kawamura and Naooki Miyamoto. Their joint efforts have likely played a role in advancing the technology related to his patents.
Conclusion
Keibun Ejima's contributions to electrophotographic technology through his innovative patent demonstrate his commitment to enhancing the field. His work continues to influence advancements in the production of sensitive members, showcasing the importance of innovation in technology.