Inventor

Ken Nishihata

Inventor

Yokohama, JP

Overview

1979–1997

Patent span

Chemistry

Primary field (CPC C)

Patents· 14 as inventor

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

C07Dprimary

C07DHeterocyclic compounds48%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations26%

Y02PClimate change mitigation technologies in the production or processing of goods22%

C07HSugars4%

PatentTitleYear

5,596,096'Azetidinone derivatives and method for producing azetidinone and cephalosoporin derivatives'1997 5,405,955'Method for producing azetidinone and cephalosporin derivatives'1995 4,950,660'Beta-lactam compound and process for production thereof'1990 4,918,068'Cephem compounds'1990 4,898,858'Cephalosporin derivatives and antibiotics containing the same'1990 4,889,926'Method for the synthesis of (2\"R)-4\'-O-tetra-hydropyranyladriamycim using 14-chloro-daunomycin as an intermediate'1989 4,839,350'Cephalosporin compounds and the production thereof'1989 4,810,702'Antibacterial agent for mammal use comprising cephalosporin derivatives as an effective ingredient'1989 4,791,197'Cephalosporin compounds'1988 4,560,750'Cephem compounds and process for preparing the same'1985 4,555,404'Sodium 7.beta.-(2D-2-amino-2-carboxyethylthioacetamido)-7.alpha.-methoxy-3-(1-m ethyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylate heptahydrate and process for its preparation'1985 4,485,235'Process for preparing 7-.alpha.-methoxycephem compounds'1984 4,225,706'Polychalcogen ester of cephem compound, process for preparing the same and method for removing the protective group of the same'1980 4,159,372'Process for preparing cephalosporin esters in the presence of liquid sulfur dioxide'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1997Patents assigned to MEIJI SEIKA KAISHA (11)· patent assignee history

1979–1997Based in Yokohama, JP· patent location history

1985–1990Based in Kanagawa, JP· patent location history

1988Patents assigned to ATSUMI KUNIO (1)· patent assignee history

1988Patents assigned to FUKATSU SHUNZO (1)· patent assignee history

1990Patents assigned to MEIJI SEIKA CO (1)· patent assignee history

1990Patents assigned to MITSUHASHI SUSUMU (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MEIJI SEIKA KAISHA	11	1979–1997
ATSUMI KUNIO	1	1988
FUKATSU SHUNZO	1	1988
MEIJI SEIKA CO	1	1990
MITSUHASHI SUSUMU	1	1990

Locations

Location	Patents	Span
Yokohama, JP	11	1979–1997
Kanagawa, JP	3	1985–1990