KY

Keiichi Yokoyama

AC Ajinomoto Co.: 20 patents #42 of 2,190Top 2%
MI Mitsui Petrochemical Industries: 16 patents #19 of 1,024Top 2%
SO Sony: 5 patents #7,785 of 25,231Top 35%
MC Mitsui Chemicals: 4 patents #512 of 2,279Top 25%
MP Mitsui Pharmaceuticals: 2 patents #5 of 28Top 20%
HC Honshu Chemical Industry Co.: 2 patents #16 of 64Top 25%
NK Nippon Gohsei Kagaku Kogyo: 2 patents #30 of 142Top 25%
JA Japan Atomic Energy Agency: 1 patents #64 of 251Top 30%
Bridgestone: 1 patents #1,586 of 2,860Top 60%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Overall (All Time): #65,772 of 4,157,543Top 2%
45
Patents All Time

Issued Patents All Time

Showing 1–25 of 45 patents

Patent #TitleCo-InventorsDate
10463594 Cosmetic composition Eiko Oshimura, Masayo Date, Yukiko Umezawa 2019-11-05
9458288 Polyester compound Fumi Shozui, Ryotaro Nakaya, Takashi Ineyama 2016-10-04
9458289 Polyester compound Fumi Shozui, Ryotaro Nakaya, Takashi Ineyama 2016-10-04
9447443 Method for producing 3-acetylamino-4-hydroxybenzoic acid Fumi Shozui, Yoshinori Tajima 2016-09-20
9062291 Transglutaminase having disulfide bond introduced therein Mototaka Suzuki, Tatsuki Kashiwagi, Eiichiro Suzuki, Masayo Date, Seiichi Taguchi 2015-06-23
8962296 Isoprene synthase and gene encoding the same, and method for producing isoprene monomer Yasuyuki Hayashi, Minako Harada, Saaya Takaoka, Yasuo Fukushima, Yosuke Nishio +3 more 2015-02-24
8580537 Thermotolerant transglutaminase originating in actinomyces Mototaka Suzuki, Masayo Date 2013-11-12
8247762 Selective molecular excitation method and isotope separation method using the same, isotope analysis method, selective molecular excitation apparatus and isotope separation apparatus Leo Matsuoka, Hiroshi Akagi, Tatsuya Kasajima, Masaaki Tsubouchi, Atsushi Yokoyama 2012-08-21
8105802 Method of producing microbial transglutaminase Yukiko Umezawa, Yoshimi Kikuchi, Masayo Date, Norimasa Onishi 2012-01-31
8093346 Method for producing an aminohydroxybenzoic acid-type compound Mototaka Suzuki, Yoshimi Kikuchi 2012-01-10
7972829 Process for producing transglutaminase Yoshimi Kikuchi, Masayo Date, Yukiko Umezawa, Hiroshi Matsui 2011-07-05
7723067 Process for producing transglutaminase Yoshimi Kikuchi, Masayo Date, Yukiko Umezawa, Hiroshi Matsui 2010-05-25
7704707 Method of producing microbial transglutaminase Yukiko Umezawa, Yoshimi Kikuchi, Masayo Date, Norimasa Onishi 2010-04-27
7553650 Polynucleotide encoding a mutant transglutaminase Tatsuki Kashiwagi, Nobuhisa Shimba, Kohki Ishikawa, Ei-ichiro Suzuki, Kazuo Hirayama 2009-06-30
7252972 Methods for secretory production of proteins Yoshimi Kikuchi, Masayo Date, Yukiko Umezawa, Haruo Heima, Hiroshi Matsui 2007-08-07
6833258 Process for producing transglutaminase Kunio Ono, Daisuke Ejima 2004-12-21
6821763 Process for producing microbial transglutaminase Nami Nakamura, Tetsuya Miwa, Katsuya Seguro 2004-11-23
6762041 Method for isotope labeling of protein with enzyme Nobuhisa Shimba, Eiichiro Suzuki 2004-07-13
6538122 Process for producing microbial transglutaminase Nami Nakamura, Tetsuya Miwa, Katsuya Seguro 2003-03-25
6482966 Crosslink-cyclized cyclopentadiene and dihalobis type metal compound containing same as ligand 2002-11-19
6180800 Fluorine-substituted cyclic carbonate and electrolytic solution and battery containing the same Takako Koiso, Akio Hiwara 2001-01-30
6046346 Production of alkali metal cyclopentadienylide and production of dihalobis (.eta.-substituted-cyclopentadienyl) zirconium from alkali metal cyclopentadienylide Kenji Sugiyama, Akira Yoshikawa 2000-04-04
6013498 Process for producing microbial transglutaminase Nami Nakamura, Tetsuya Miwa, Katsuya Seguro 2000-01-11
6010806 Fluorine-substituted cyclic carbonate electrolytic solution and battery containing the same Takako Sasano, Akio Hiwara 2000-01-04
5977277 Acrylic ester, novel allyl ether, novel allyl carbonate, acrylic ester polymer, allyl ether polymer, allyl carbonate polymer and polymeric solid electrolyte Takako Sasano, Akio Hiwara, Masahiro Toriida, Satoko Mita, Masayoshi Watanabe 1999-11-02