YW

Yoshihisa Watanabe

KT Kabushiki Kaisha Toshiba: 11 patents #2,779 of 21,451Top 15%
SK Sekisui Kagaku Kogyo: 8 patents #1 of 395Top 1%
ML Mitsubishi Petrochemical Company Limited: 4 patents #89 of 670Top 15%
IW Igarashi Electric Works: 4 patents #2 of 13Top 20%
Ricoh Company: 3 patents #4,826 of 9,818Top 50%
NI Nissan Chemical Industries: 3 patents #343 of 1,150Top 30%
SO Sony: 2 patents #12,963 of 25,231Top 55%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
HC Hitachi Computer Engineering Co.: 2 patents #9 of 170Top 6%
HC Hokko Chemical Industry Co.: 2 patents #30 of 157Top 20%
MC Mitsui Mining & Smelting Co.: 2 patents #281 of 838Top 35%
ST Sun Tool: 2 patents #2 of 6Top 35%
DI Dai Nippon Insatsu: 2 patents #122 of 371Top 35%
JD Japan Display: 1 patents #900 of 1,204Top 75%
WC Wakunaga Pharmaceutical Co.: 1 patents #29 of 94Top 35%
TC Toyo Communication Equipment Co.: 1 patents #44 of 111Top 40%
MC Maruzen Petrochemical Co.: 1 patents #83 of 174Top 50%
JS Japanese Red Cross Society: 1 patents #3 of 33Top 10%
Overall (All Time): #65,721 of 4,157,543Top 2%
45
Patents All Time

Issued Patents All Time

Showing 26–45 of 45 patents

Patent #TitleCo-InventorsDate
5601298 Wheelbarrow 1997-02-11
D374958 Wheelbarrow 1996-10-22
5347056 Process for producing unsaturated alcohols Mitsuhiko Kurashige 1994-09-13
5283341 N-alkylation of heterocyclic, aromatic amines Norio Tanaka, Masataka Hatanaka 1994-02-01
5139892 Magnetic recording media with resin containing vinyl chloride copolymer Takeshi Nakachi, Akio Hata 1992-08-18
5068282 Process for producing a polyvinyl acetacetal resin for use in a heat transfer sheet Jumpei Kanto, Masanori Akada, Katsuhiro Kamakari, Kenichi Asahina, Katsuaki Sakashita 1991-11-26
5037893 Resin used for magnetic recording media derived from vinyl chloride and quaternary monomer Takeshi Nakachi, Akio Hata 1991-08-06
5028676 Resin for magnetic recording media from vinyl chloride with quanternary and phosphoric monomers Takeshi Nakachi, Akio Hata 1991-07-02
5008357 Resin for magnetic recording media from vinyl chloride polymer with quaternary groups Takeshi Nakachi, Akio Hata 1991-04-16
4996272 Resin used for magnetic recording media and a method for the production of the same Takeshi Nakachi, Akio Hata 1991-02-26
4902670 Heat transfer sheet Jumpei Kanto, Masanori Akada, Katsuhiro Kamakari, Kenichi Asahina, Katsuaki Sakashita 1990-02-20
4861683 Quaternary-containing resin used for magnetic recording media Takeshi Nakachi, Akio Hata 1989-08-29
4849496 Ketone containing terpolymer Makoto Takeda, Hisao Kinoshita, Akiko Fujishima 1989-07-18
4803871 Inspection device for inspecting projections on the surface of parts Osamu Harada, Akio Kojima, Souhei Ikeda, Yoshihisa Tsuji 1989-02-14
4777357 Bar code reader Osamu Harada, Souhei Ikeda, Akio Kojima, Keiichi Isozaki 1988-10-11
4621903 Electro-optic light shutter Kanji Murano, Susumu Nishigaki, Masami Himuro 1986-11-11
4363993 Piezoelectric electro-mechanical bimorph transducer Susumu Nishigaki, Kanji Murano 1982-12-14
4341912 Process for producing alkenyl-substituted aromatic compounds and catalyst therefor Kunimasa Takahashi, Makoto Imanari 1982-07-27
4255183 Substituted phenyl urea and herbicides for use in paddy field Hiroshi Ohyama, Sanae Takada, Jyotaroh Tamura, Iwao Taketomi 1981-03-10
4237254 Process for producing olefin polymers Sadao Kitagawa, Isao Okada, Teruo Saito, Shoichi Masukawa, Makoto Imanari 1980-12-02