MO

Masahisa Oka

BR Bristol-Meyers: 15 patents #15 of 350Top 5%
BS Bristol-Myers Squibb: 5 patents #1,010 of 3,969Top 30%
TI Takeda Chemical Industries: 2 patents #497 of 1,420Top 35%
WI Wako Pure Chemical Industries: 1 patents #164 of 377Top 45%
Overall (All Time): #186,803 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
6013826 Method formation of a carbon-carbon bond Yasuyuki Kita, Atsunori Sano, Takahiro Yamaguchi, Masato Matsugi, Kentoku Gotanda 2000-01-11
5665394 Matrix for sustained-release preparation Yasutaka Igari, Akira Saikawa, Kayoko Okamoto, Shigeru Kamei, Atsunori Sano 1997-09-09
5594091 Matrix for sustained-release preparation Yasutaka Igari, Akira Saikawa, Kayoko Okamoto, Shigeru Kamei, Atsunori Sano 1997-01-14
5266600 BU-4641V, an antibacterial, antiviral and antitumor antibiotic Osamu Tenmyo, Yosuke Sawada, Toshikazu Oki, Masaru Sugawara, Noriyuki Ohkusa 1993-11-30
5256548 Antiviral antibiotic BU-4344V Koji Tomita, Osamu Tenmyo, Nobuaki Naruse 1993-10-26
5140101 Antiviral antibiotic BU-4344V Koji Tomita, Osamu Tenmyo, Nobuaki Naruse 1992-08-18
5096884 Glidobactin PF-1 peptide antibiotics Keiichi Numata 1992-03-17
5079148 Peptide antibiotics Masataka Konishi, Koji Tomita, Ken Numata 1992-01-07
5025023 Peptide antibiotics Masataka Konishi, Koji Tomita, Ken Numata 1991-06-18
4916063 BU-2867T peptide antibiotics Masataka Konishi 1990-04-10
4898940 Peptide antibiotics Masataka Konishi, Koji Tomita, Ken Numata 1990-02-06
4833076 Peptide antibiotics Masataka Konishi, Koji Tomita, Ken Numata 1989-05-23
4789731 Semi-synthetic peptide antibiotics Keiichi Numata, Masataka Konishi 1988-12-06
4777160 BU-2867T peptide antibiotics Masataka Konishi 1988-10-11
4751295 Cephalosporin derivatives Haruhiro Yamashita, Jun Okumura, Takayuki Naito 1988-06-14
4742047 Semi-synthetic peptide antibiotics Keiichi Numata, Masataka Konishi 1988-05-03
4692510 Peptide antibiotics Masataka Konishi, Koji Tomita, Ken Numata 1987-09-08
4507487 Chemical compounds Hajime Kamachi, Jun Okumura, Takayuki Naito, Haruhiro Yamashita 1985-03-26
4474954 Intermediates for cephalosporin derivatives Hajime Kamachi, Jun Okumura, Takayuki Naito 1984-10-02
4394503 Cephalosporin derivatives Hajime Kamachi, Jun Okumura, Takayuki Naito 1983-07-19
4288590 7 -[D.alpha.-(4-Hydroxy-1,5-naphthyridine-3-carboxamido)-.alpha.-arylacetam ido]-3-(N,N-dimethyl-aminomethylpyridinium) methyl-3-cephem-4-carboxylates Jun Okumura, Takayuki Naito 1981-09-08
4198504 [3-(Pyridinium)-7-(naphthyiridinyl carbonylamino)acetamido]cephalosporanic acid derivatives Takayuki Naito, Jun Okumura 1980-04-15
4198506 2-Carboxyalkyl-2,3-dihydro-6-mercapto-s-triazolo[4,3-b]-pyridazin-3-ones Takayuki Naito, Jun Okumura, Hajime Kamachi, Seiji Iimura, Hideaki Hoshi 1980-04-15