Inventor

Nobuo Ikekawa

Inventor

Tokyo, JP

Overview

32→

Patents

1977–1997

Patent span

Chemistry

Primary field (CPC C)

Patents· 32 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds31%

C07JSteroids30%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations20%

Y02PClimate change mitigation technologies in the production or processing of goods7%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture4%

A23KFodder1%

C07DHeterocyclic compounds1%

C07HSugars1%

PatentTitleYear

5,616,609'Carcinostatic compound and production thereof'1997 5,278,155'Fluorine-containing vitamin D.sub.3 analogues and cell differentiation-inducing agent containing the same'1994 5,210,237'Vitamin D.sub.3 analogues'1993 5,206,230'Fluorine-containing vitamin D3 analogues and pharmaceutical composition containing the same'1993 5,200,536'Fluorine-containing vitamin D3 analogues'1993 5,157,135'1.alpha.,25-dihydroxyvitamin D4 compounds, ergosta-5,7-diene compounds and processes for the preparation thereof'1992 5,047,564'Fluorine-containing vitamin D.sub.2 derivatives'1991 4,973,721'Production of novel vitamin D.sub.3 derivatives'1990 4,897,387'Novel vitamin D.sub.3 derivatives'1990 4,868,165'24,24-difluoro-26,27-dimethylvitamin D.sub.3 derivatives'1989 4,857,518'Hydroxylated 24-homo-vitamin D derivatives and methods for preparing same'1989 4,851,400'Hydroxylated 26-homo vitamin D derivatives and methods for preparing same'1989 4,832,875'Vitamin D.sub.3 derivative'1989 4,717,721'Sidechain homo-vitamin D compounds with preferential anti-cancer activity'1988 4,711,881'1.alpha.,25-dihydroxy-26,27-dimethylcholecalciferol and its use in the treatment of calcium pathobolism'1987 4,619,920'26,26,26,27,27-pentafluoro-1.alpha.-hydroxy-27-methoxyvitamin D.sub.3'1986 4,594,192'2.alpha.-fluorovitamin D.sub.3'1986 4,588,528'1,24-dihydroxy-.DELTA..sup.22 -vitamin D.sub.3 and process for preparing same'1986 4,564,474'23,23-Difluoro-25-hydroxy-vitamin D.sub.3 and process for preparing same'1986 4,552,698'23,23-Difluoro-1.alpha.,25-dihydroxy-vitamin D.sub.3'1985 4,502,991'23,23-Difluoro-1.alpha.,25-dihydroxy-vitamin D.sub.3'1985 4,500,460'23,23-Difluoro-25-hydroxy-vitamin D.sub.3 and process for preparing same'1985 4,411,833'Method for preparing 26,26,26,27,27,27-hexafluoro-1.alpha.,25-dihydroxycholesterol'1983 4,358,406'26,26,26,27,27,27-Hexafluoro-1.alpha.,25-dihydroxycholecalciferol and process for preparing same'1982 4,307,025'1.alpha., 25-dihydroxy-2.beta.-fluorovitamin D.sub.3'1981 4,305,880'Process for preparing 24-fluoro-25-hydroxycholecalciferol'1981 4,254,045'1.alpha.-Hydroxy-2.beta.-fluorocholecalciferol'1981 4,248,791'25-Hydroxy-26,26,26,27,27,27-hexafluorocholecalciferol'1981 4,226,788'24,24-Difluoro-1.alpha.,25-dihydroxycholecalciferol'1980 4,201,881'24,24-Difluoro-1.alpha.,25-dihydroxycholecalciferol'1980 4,196,133'24,24-Difluoro-25-hydroxycholecalciferol'1980 4,022,891'Novel 1.alpha.,24-dihydroxycholecalciferol compositions, novel precursors thereof, and processes for preparing them'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1993Based in Tokyo, JP· patent location history

1980–1989Patents assigned to WISCONSIN ALUMNI RES FOUND (18)· patent assignee history

1981–1997Based in Musashino, JP· patent location history

1987–1991Patents assigned to TAISHO PHARMACEUTICAL CO LTD (4)· patent assignee history

1988Patents assigned to HOWARD W BREMER (1)· patent assignee history

1990Patents assigned to YAMANOUCHI PHARMA CO LTD (2)· patent assignee history

1993–1994Patents assigned to DAIKIN IND LTD (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WISCONSIN ALUMNI RES FOUND	18	1980–1989
DAIKIN IND LTD	4	1993–1994
TAISHO PHARMACEUTICAL CO LTD	4	1987–1991
YAMANOUCHI PHARMA CO LTD	2	1990
HOWARD W BREMER	1	1988

Locations

Location	Patents	Span
Tokyo, JP	18	1977–1993
Musashino, JP	14	1981–1997