Inventor

Shigeto Negi

Inventor

Ibaraki, JP

Overview

38→

Patents

1981–2010

Patent span

Chemistry

Primary field (CPC C)

Patents· 38 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Dprimary

C07DHeterocyclic compounds55%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations22%

Y02PClimate change mitigation technologies in the production or processing of goods12%

C07CAcyclic or carbocyclic compounds6%

A61KPreparations for medical, dental or toiletry purposes1%

C07BGeneral methods of organic chemistry1%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium1%

PatentTitleYear

7,858,809'Process for production of pyrazole-fused ring derivatives'2010 7,816,405'Calcium bis [(2S)-3-[3-[(2S)-3-(4-chloro-2-cyanophenoxy)-2-fluoropropoxy]phenyl ]-2-isopropoxypropionate] and intermediate thereof'2010 7,803,949'Process for preparation of water-soluble azole prodrugs'2010 7,585,982'Methods for producing isoindole derivatives'2009 6,841,549'Condensed imidazole compounds and a therapeutic agent for diabetes mellitus'2005 6,642,377'Process for the preparation of basic antibiotic-inorganic acid addition salts and intermediate oxalates'2003 6,620,945'Process for producing stereoisomer of pyrrolidine derivative'2003 5,741,902'7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation'1998 5,606,073'Diazole-propenoic acid compounds'1997 5,604,217'7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation'1997 5,587,473'7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation'1996 5,563,265'7-acyl-3-(substituted carbamoyloxy) cephem compounds'1996 5,559,225'7-acyl-3-(substituted carbamoyloxy) cephem compound'1996 5,541,213'Propenoic acid derivatives diazole propenoic acid compounds which have useful pharmaceutical utility'1996 5,373,000'7Beta-(thiadiazolyl)-2-iminoacetamido-3cephem compounds'1994 5,151,417'3-substituted vinyl cephalosporin derivatives'1992 5,128,465'Process for the preparation of cephem derivatives and intermediates therefor'1992 5,089,491'3-propenylcephem derivative'1992 5,010,188'Cephem derivatives'1991 5,008,260'Cephem derivatives'1991 5,006,649'3-propenylcephem derivative'1991 4,929,612'Thiadiazolylacetamide cephem derivatives'1990 4,921,850'3-propenylcephem derivative'1990 4,748,171'Cephem compounds having at the 3-position a (1,4-methylene-1-piperidinio)methyl group or a (1-quinuclidinio)methyl group'1988 4,698,336'3-(pyrrolidinio)methyl-3-cephem derivatives'1987 4,546,176'7-Carboxymethoxyphenylacetamido-3-cephem derivatives and antibacterial preparations containing the same'1985 4,513,145'2-Methylchromone derivatives and process for their preparation'1985 4,468,394'Cephalosporin compounds'1984 4,448,775'3-Carbamoyloxymethylcephem derivatives, and antibacterial drugs containing same'1984 4,433,142'Process for the preparation of 7-(2-amino-2-phenylacetamido) cephem derivatives'1984 4,415,567'7.alpha.-Methoxycephalosporin derivatives, and antibacterial drugs containing the same'1983 4,352,801'Cephem derivatives and antibacterial agents comprising said compounds'1982 4,344,944'7-.alpha.-methoxycephalosporin derivatives, and antibacterial drugs onctaining the same'1982 4,331,606'N-(Substituted chromone-3-carbonyl)-phenylglycine derivatives'1982 4,309,354'Chromone derivatives'1982 4,285,941'Cephalosporin compounds and antibacterial drugs containing the same'1981 4,285,939'Cephalosporin derivatives, and antibacterial drugs containing the derivatives'1981 4,285,940'Cephalosporin derivatives, and antibacterial drugs comprising said derivatives'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–2005Patents assigned to EISAI CO LTD (34)· patent assignee history

1981–1983Based in Kodaira, JP· patent location history

1984Based in Tokyo, JP· patent location history

1985–2005Based in Ibaraki, JP· patent location history

1996–2010Based in Tsukuba, JP· patent location history

2003Patents assigned to YAMAKAWA CHEMICAL IND (1)· patent assignee history

2009–2010Patents assigned to EISAI R&D MAN CO LTD (4)· patent assignee history

2009–2010Based in Kashima, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EISAI CO LTD	34	1981–2005
EISAI R&D MAN CO LTD	4	2009–2010
YAMAKAWA CHEMICAL IND	1	2003

Locations

Location	Patents	Span
Ibaraki, JP	20	1985–2005
Kodaira, JP	8	1981–1983
Tsukuba, JP	4	1996–2010
Tokyo, JP	3	1984
Kashima, JP	2	2009–2010