This inventor holds 10 USPTO granted patents. Top assignees: Ricoh Company, Ltd., Tohoku Ricoh Co., Ltd., Other. Active years: 1989-2013.
Location History:
- Numazu, JP (1989 - 1998)
- Shizuoka-ken, JP (2003)
- Niigata, JP (2011 - 2013)
Company Filing History:
10 out of 28,915 
1 out of 234 
1 out of 834,350 Years Active: 1989-2013
Title: Minoru Umeda: Innovator in Electrophotography and Fuel Cell Technology
Introduction
Minoru Umeda is a prominent inventor based in Numazu, Japan. He has made significant contributions to the fields of electrophotography and fuel cell technology. With a total of 10 patents, Umeda's work has had a lasting impact on these industries.
Latest Patents
Umeda's latest patents include innovative technologies such as an electrophotographic photoconductor and an electrocatalyst for ethanol oxidation. The electrophotographic photoconductor features an electrically conductive substrate and a photoconductive layer that contains a diazapentadiene derivative. Additionally, his electrocatalyst for ethanol oxidation comprises an elemental mixture of platinum and ruthenium, along with other selected elements like tungsten and copper.
Career Highlights
Throughout his career, Umeda has worked with notable companies, including Ricoh Company, Ltd. His expertise in electrophotography and fuel cell technology has positioned him as a key figure in these fields. His inventions have contributed to advancements in both consumer and industrial applications.
Collaborations
Umeda has collaborated with esteemed colleagues such as Tatsuya Niimi and Kiyoshi Taniguchi. These partnerships have fostered innovation and have led to the development of groundbreaking technologies.
Conclusion
Minoru Umeda's contributions to electrophotography and fuel cell technology highlight his role as a leading inventor. His patents and collaborations continue to influence the industry, showcasing the importance of innovation in technology.