RS

Riichiro Shibakawa

Pfizer: 15 patents #263 of 5,153Top 6%
📍 Handa, JP: #27 of 266 inventorsTop 15%
Overall (All Time): #329,200 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
4605624 Nocardia species capable of producing nargenicin C.sub.1 Walter D. Celmer, Walter P. Cullen, Junsuke Tone 1986-08-12
4582796 Erythromycin D and esters thereof by fermentation with Nocardia sp. ATCC 39043 Walter D. Celmer, Walter P. Cullen, Paul Watts, Junsuke Tone 1986-04-15
4533553 Polycyclic ether antibiotic Walter D. Celmer, Walter P. Cullen, Junsuke Tone 1985-08-06
4496546 Erythromycin D and esters thereof Walter D. Celmer, Walter P. Cullen, Paul Watts, Junsuke Tone 1985-01-29
4450237 Streptomyces albus subspecies indicus Walter D. Celmer, Walter P. Cullen, Junsuke Tone 1984-05-22
4436747 Nargenicin C.sub.1 Walter D. Celmer, Walter P. Cullen, Junsuke Tone 1984-03-13
4431801 Polycyclic ether antibiotic Walter D. Celmer, Walter P. Cullen, Junsuke Tone 1984-02-14
4411892 Tylosin macrolide antibiotics from streptomyces Walter D. Celmer, Walter P. Cullen, Junsuke Tone 1983-10-25
4361649 Polycyclic ether antibiotic Walter D. Celmer, Walter P. Cullen, Junsuke Tone 1982-11-30
4287182 Antibiotics produced by a new microbe, Catenuloplanes japonicus Walter D. Celmer, Walter P. Cullen, Liang H. Huang, John R. Oscarson, Junsuke Tone 1981-09-01
4247462 Ansamycin antibiotic Walter D. Celmer, Walter P. Cullen, John R. Oscarson, Liang H. Huang, Junsuke Tone 1981-01-27
4225674 Process for producing new ansamycin antibiotic Walter D. Celmer, Walter P. Cullen, John R. Oscarson, Liang H. Huang, Junsuke Tone 1980-09-30
4224314 Antibiotics produced by species of Nocardia Walter D. Celmer, Paul Watts, Walter P. Cullen, Liang H. Huang, Junsuke Tone 1980-09-23
4212944 Process for producing nocardicin A Walter D. Celmer, Liang H. Huang, Mark T. Jefferson, Hiroshi Maeda, Kozo Inoue 1980-07-15
4195079 New polycyclic ether antibiotic Walter D. Celmer, Walter P. Cullen, John R. Oscarson, Liang H. Huang, Junsuke Tone 1980-03-25