TO

Tadashi Okano

Ricoh Company: 14 patents #1,578 of 9,818Top 20%
HI Hitachi: 8 patents #5,191 of 28,497Top 20%
Yamaha: 6 patents #432 of 2,001Top 25%
SC Shimizu Construction Co.: 3 patents #20 of 352Top 6%
SO Sony: 2 patents #12,963 of 25,231Top 55%
MM Mitsubishi Mining: 2 patents #467 of 2,247Top 25%
NE Nec: 2 patents #5,510 of 14,502Top 40%
SH Shimizu: 1 patents #15 of 53Top 30%
RS Ricoh Printing Systems: 1 patents #97 of 200Top 50%
Nichia: 1 patents #1,005 of 1,531Top 70%
Overall (All Time): #89,620 of 4,157,543Top 3%
37
Patents All Time

Issued Patents All Time

Showing 26–37 of 37 patents

Patent #TitleCo-InventorsDate
6516171 Color electrographic apparatus with developing device having separated toner supply and recovery chambers Toru Miyasaka, Kazushige Oonishi, Masahiko Saito, Shoji Takeya 2003-02-04
6321058 Developing device with toner storing and recovery chambers Toru Miyasaka, Kazushige Oonishi, Masahiko Saito, Shoji Takeya 2001-11-20
6308025 Electrophotography apparatus Tetsuji Takegoshi, Kazuo Kikuchi, Toru Hanashima, Kazuhiro Wakamatsu 2001-10-23
6144829 Developing device and electrophotographic device Toru Miyasaka, Kazushige Oonishi, Masahiko Saito, Shoji Takeya 2000-11-07
6125250 Developing device, developing method, and an image forming apparatus Keiji Kamio, Yoshitaro Ishii, Shizuo Tsuruta, Masahiko Saito, Nobuo Suzuki +2 more 2000-09-26
6038416 Developing apparatus and image forming apparatus having the same Masahiko Saito, Isamu Terashima, Shoji Takeya, Toru Miyasaka, Kazushige Oonishi 2000-03-14
5797075 Image forming apparatus having improved toner carrier arrangement Masahiko Saito, Toru Miyasaka, Kazushige Oonishi, Shoji Takeya, Isamu Terashima +1 more 1998-08-18
5417018 Construction apparatus for building and constructing method therewith Takeji Matsumoto, Hiroki Muramoto, Mitoku Mukaidani, Yasuyuki Hashimoto, Motoetsu Ishii +9 more 1995-05-23
5358568 Spraying apparatus Jun Nishimura, Hajime Nomura, Takehiro Yoshida, Masahiko Jotani 1994-10-25
5255489 Construction apparatus for buildings and constructing method therewith Takeji Matsumoto, Hiroki Muramoto, Mitoku Mukaidani, Yasuyuki Hashimoto, Motoetsu Ishii +9 more 1993-10-26
5107416 Arrangement for simultaneously dealing with transfer requests produced by central, arithmetic and input-output processors of a super computer Akira Jippo, Masafumi Okamoto 1992-04-21
4953720 Crane and method for using crane Tadayoshi Honda 1990-09-04