HW

Hisao Watanabe

Ricoh Company: 14 patents #1,578 of 9,818Top 20%
MC Microwave Chemical Co.: 5 patents #5 of 18Top 30%
KT Kabushiki Kaisha Toshiba: 3 patents #8,011 of 21,451Top 40%
KC Kokusai Denshin Denwa Co.: 1 patents #219 of 382Top 60%
SC Shindengen Electric Manufacturing Co.: 1 patents #159 of 307Top 55%
YC Yamanashi Electronics Co.: 1 patents #18 of 75Top 25%
Overall (All Time): #168,197 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDate
12290792 Treatment apparatus Yasunori Tsukahara, Satoshi Morikawa, Yukari DEGUCHI, Yuka Kotake, Hideshi Kurihara +2 more 2025-05-06
11633709 Treatment apparatus Yasunori Tsukahara, Satoshi Morikawa, Yukari DEGUCHI, Yuka Kotake, Hideshi Kurihara +2 more 2023-04-25
11524269 Mixing impeller and treatment apparatus Masahiro Imai, Takanobu Murata, Hideshi Kurihara 2022-12-13
10850252 Microwave treatment apparatus and program Yasunori Tsukahara, Yuya Tanaka, Hideshi Kurihara, Ryuhei KINJYO 2020-12-01
10811746 Waveguide tube connection device and clamp for waveguide tube connection Akinori Ishizuka 2020-10-20
10227700 Hydrogen production system and method for producing hydrogen Hisao Oomura, Kazuya Yamada, Shinichi Makino, Seiji Fujiwara, Shigeo Kasai 2019-03-12
10081872 Hydrogen production system and method for producing hydrogen Masafumi Komai, Masahiko Yamada, Tsuneji Kameda, Yuko Kawajiri, Seiji Fujiwara +2 more 2018-09-25
9957626 Hydrogen production system and method for producing hydrogen Yuko Kawajiri, Ryoji Yoshimura, Seiji Fujiwara, Hiroyuki Yamauchi, Masafumi Komai +5 more 2018-05-01
6940792 CLV optical disc, CLV optical disc format, and an optical disc medium recording and reproducing apparatus 2005-09-06
6678235 CLV optical disc, CLV optical disc format, and an optical disc medium recording and reproduction apparatus 2004-01-13
6452898 Constant linear velocity (CLV) optical disc 2002-09-17
6339573 Apparatus for exposing optical disc master plate and method of exposing the same 2002-01-15
6212146 Apparatus for exposing optical disc master plate and method of exposing the same 2001-04-03
6189173 Device for removing a substance deposited on a sheet Masatoshi Saito, Tooru Maruyama 2001-02-20
6156127 Method and apparatus for removing image forming substance from image holding member Tohru Maruyama, Masatoshi Saito, Taro Terashi, Shigeru Fujita, Masaru Shinkai +1 more 2000-12-05
6143091 Method for removing a substance deposited on a sheet Masatoshi Saito, Tooru Maruyama 2000-11-07
5896612 Method and apparatus for removing image forming substance from image holding member Tohru Maruyama, Masatoshi Saito, Taro Terashi, Shigeru Fujita, Masaru Shinkai +1 more 1999-04-27
5855734 Device for removing a substance deposited on a sheet Masatoshi Saito, Tooru Maruyama 1999-01-05
5835837 Apparatus for removing image forming substance from image holding member Masatoshi Saitoh, Yasuhiro Takahashi, Masaru Shinkai, Hiroshi Kondoh 1998-11-10
5735009 Device for removing a substance deposited on a sheet Masatoshi Saito, Tooru Maruyama 1998-04-07
5642550 Apparatus for removing image forming substance from image holding member Tohru Maruyama, Masatoshi Saito, Taro Terashi, Shigeru Fujita, Masaru Shinkai +1 more 1997-07-01
5534063 Apparatus for removing image forming substance from sheet and sheet processing apparatus Tooru Maruyama, Iwao Takahashi, Masatoshi Saito, Shigeru Fujita, Taro Terashi +4 more 1996-07-09
5051778 Electrophotographic copying machine which integrates components having substantially equal service lives into respective detachable units formed of a developing unit, a photoreceptor unit and a toner cartridge unit Jiro Fukasawa 1991-09-24
4907254 Power source system for data terminal equipment Kenji Suzuki, Toshihiko Kato, Shuji Momomoto 1990-03-06