KU

Kazuhiko Umemura

Ricoh Company: 2 patents #62 of 609Top 15%
Overall (2002): #55,956 of 266,432Top 25%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6493529 Charging device with walls surrounding the electrodes which reduce ozone emissions Tomoaki Sugawara, Tatsuya Sato, Hiroshi Kondo, Shohji Tanaka 2002-12-10
6447973 Liquid developer for developing electrostatic image and image forming method Tsuyoshi Asami, Kazuo Tsubuko, Aiko Ishikawa, Akihiro Koseki, Takeo Kudoh 2002-09-10