Inventor

Hidenori Kumobayashi

Inventor

Kanagawa, JP

Overview

1979–2001

Patent span

Chemistry

Primary field (CPC C)

Patents· 69 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds31%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium28%

C07DHeterocyclic compounds18%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry9%

C07BGeneral methods of organic chemistry9%

Y02PClimate change mitigation technologies in the production or processing of goods4%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations1%

C07JSteroids1%

PatentTitleYear

6,197,996'Process for preparing optically active carnitine ester'2001 5,859,249'2-phenyl-2-(2\'-piperidinylidene)acetate derivative, process for manufacturing the same, and process for manufacturing optically active 2-phenyl-2-(2\'-piperidinyl)acetate derivative by asymmetrically hydrogenating the same'1999 5,847,222'Optically active diphosphine compound, method for making the compound, transition metal complex having the compound as ligand and method for making optically active substance by use of the complex'1998 5,837,877'Process for preparing optically active 4-hydroxy-2-pyrrolidone'1998 5,824,822'Phospphine-phosinite compound and process for preparing 4-›(R)-1\'-formylethyl!-azetidin-2-one derivatives using the same'1998 5,808,162'Chiral unsymmetric diphosphine compound and transition metal complex containing the same as ligand'1998 5,801,271'7-(n-substituted amino)-2-phenylheptanoic acid derivative and process for manufacturing the same'1998 5,756,760'1-substituted-2-diphenylphosphinonaphthalene and transition metal complex comprising the same as a ligand'1998 5,686,616'Process for preparing an optically active amine'1997 5,631,397'Process for producing optically active diaminohexanone derivative'1997 5,629,420'Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives'1997 5,606,052'Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives'1997 5,599,954'N-substituted-7-amino-5-hydroxy-3-oxoheptanoic acid derivatives and method for producing the same'1997 5,581,007'Process for preparing optically active allophenylnorstatin derivatives'1996 5,563,295'Process for producing optically active carboxylic acid'1996 5,530,150'Phosphine compound, complex containing the phosphine compound as ligand, process for producing optically active aldehyde using the phosphine compound or the complex, and 4-[(R)-1\'-formylethyl]azetidin-2-one derivatives'1996 5,523,458'Process for producing optically active diaminohexanone derivative'1996 5,502,221'Process for producing cyclohexylbutyric acid derivative'1996 5,442,105'Process for producing cyclohexylbutyric acid derivative'1995 5,440,030'Ru catalyzed acyloxylation process for preparing 4-acyloxyazetidinone derivatives'1995 5,430,171'T-butyl (R)-(-)-4-cyano-3-hydroxybutyrate and process for preparing the same'1995 5,420,306'Process for producing optically active .gamma.-butyrolactone derivatives'1995 5,412,109'Process for preparing optically active 4-methyl-2-oxetanone'1995 5,349,107'Process for producing optically active .gamma.-hydroxyketones'1994 5,324,861'Water-soluble alkali metal sulfonate-substituted binaphthylphosphine transition metal complex and enantioselective hydrogenation method using it'1994 5,324,870'Process for producing optically active 1-substituted-1,3-propanediols using ruthenium-phosphine complex as a catalyst'1994 5,312,939'2,2\'-bis (dicyclopentylphosphino)-1,1\'-binaphthyl and transition metal complex using the same as ligand'1994 5,306,834'Process for preparing optically active 4-methyl-2-oxetanone'1994 5,288,862'Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives'1994 5,286,883'(3R,5S)-3,5,6-trihydroxyhexanoic acid derivative and production method thereof'1994 5,286,888'Ruthenium-phosphine complex and process for producing optically active 1-substituted-1,3-propanediols using the same as a catalyst'1994 5,274,146'Water-soluble alkali metal sulfonate-substituted binaphthylphosphine transition metal complex and enantioselective hydrogenation method using it'1993 5,231,202'Optically active tertiary phosphine compound and transition metal complex using the same as ligand'1993 5,223,632'2,2\'-bis(di-(3,5-dialkylphenyl)phosphino)-1,1\'-binaphthyl and transition metal complex containing the samd ligand'1993 5,210,315'Process for producing .alpha.-hydroxyketones'1993 5,210,332'Iridium-optically active phosphine complex and process for producing optically active alcohols using the same'1993 5,206,399'2,2\'-bis(diphenylphosphino)-5,5\',6,6\',7,7\',8,8\'-octahydro-1 ,1\'-binaphthyl and transition metal complex containing the same as ligand'1993 5,204,460'Ruthenium catalyzed process for preparing 4-acetoxyazetidinones'1993 5,198,562'Ruthenium-phosphine complex and intermediate for producing the same'1993 5,191,076'Acetyloxylation process for producing 4-acetoxyazetidinones with osmium catalyst'1993 5,159,093'Iridium-optically active phosphine complex and process for producing optically active alcohols using the same'1992 5,144,042'Process for preparing optically active 3-hydroxypyrrolidine derivatives'1992 5,128,489'Process for production of optically active 2-(tetrahydropyran-2-yloxy)-1-propanol'1992 5,081,239'Ruthenium catalyzed process for preparing 4-acetoxyazetidinones'1992 5,081,310'Process for preparing optically active ketones'1992 5,066,815'Process for preparing optically active alcohol'1991 5,012,002'2,2\'-bis(di-(m-tolyl)phosphino)-1,1\'-binaphthyl'1991 4,994,590'Ruthenium-phoshine complex'1991 4,994,602'Process for preparing optically active 6-t-butyoxy-3,5-dihydroxyhexanoic esters'1991 4,965,398'Process for producing optically active alpha-hydroxycarboxylates'1990 4,962,230'Process for producing optically active carboxylic acid'1990 4,962,242'Process for producing optically active alcohols'1990 4,954,644'Ruthenium-phosphine complex'1990 4,933,482'Process for preparing optically active alcohol'1990 4,916,252'Process for preparing optically active alcohol'1990 4,906,773'Process for preparing optically active threonine'1990 4,895,979'Process for preparing carnitine'1990 4,851,537'Process for preparing N-acyltetrahydroisoquinoline'1989 4,766,227'Ruthenium-phosphine complex'1988 4,766,225'Ruthenium-phosphine complex'1988 4,764,629'Ruthenium-phosphine complex'1988 4,739,085'Ruthenium-phosphine complex'1988 4,739,084'Ruthenium-phosphine complex'1988 4,705,895'5,5\'-diamino or 5,5\'-diacetamido-2,2\'-bis(diphenylphosphino)-1,1\'-binaphthyls'1987 4,695,631'Process for the preparation of enamines or imines'1987 4,605,750'Rhodium-phosphine complex'1986 4,604,474'Rhodium-phosphine complex'1986 4,520,212'Process for producing myrcenol'1985 4,144,257'Process for preparing derivatives of conjugated diene dimers'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–2001Patents assigned to TAKASAGO PERFUMERY CO LTD (69)· patent assignee history

1979–1993Based in Chigasaki, JP· patent location history

1985–2001Based in Kanagawa, JP· patent location history

1990–1997Based in Tokyo, JP· patent location history

1992Patents assigned to DAIICHI SEIYAKU CO (1)· patent assignee history

1994–1998Based in Hiratsuka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TAKASAGO PERFUMERY CO LTD	69	1979–2001
DAIICHI SEIYAKU CO	1	1992

Locations

Location	Patents	Span
Kanagawa, JP	39	1985–2001
Tokyo, JP	22	1990–1997
Hiratsuka, JP	5	1994–1998
Chigasaki, JP	3	1979–1993