YW

Yohichiroh Watanabe

Ricoh Company: 6 patents #96 of 1,683Top 6%
Overall (2011): #9,364 of 364,097Top 3%
6
Patents 2011

Issued Patents 2011

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8034526 Method for manufacturing toner and toner Shinji Ohtani, Yoshihiro Norikane, Yasuaki Iwamoto, Yasutada Shitara, Kazumi Suzuki +1 more 2011-10-11
8026031 Toner, vessel with the toner, developer, image forming apparatus and process cartridge and image forming method Naohiro Watanabe, Shigeru Emoto, Masahide Yamada, Tsunemi Sugiyama, Masahiro Ohki +4 more 2011-09-27
7932007 Toner and method for producing the same, and image-forming method using the same Hiroshi Yamashita, Chiaki Tanaka, Tsunemi Sugiyama, Masahiro Ohki, Sonoh Matsuoka +4 more 2011-04-26
7892718 Image forming apparatus, image forming method and process cartridge Yasuaki Iwamoto, Yasutada Shitara 2011-02-22
7873304 Image forming apparatus, image forming method, and process cartridge Yasuaki Iwamoto, Yasutada Shitara 2011-01-18
7862973 Toner and developer, and image forming apparatus, image forming method and process cartridge Shinya Nakayama, Akihiro Kotsugai, Yasuaki Iwamoto, Yasutada Shitara 2011-01-04