Inventor · disambiguated record
Koshi Koseki
Also filed as: KOSEKI KOSHI
14 granted patents·174 citations·filing 1989–1993
92Inventor score
Files withJAPAN TOBACCO INC14
Top patents by PatentIndex Score
14 records- 0190US5391769AMethod of preparing 3-DPA-lactoneJAPAN TOBACCO INC·Filed 1992·Granted Feb 21, 1995·47 cites·20 claims
- 0289US5322955AMethod of manufacturing 3-DPA-lactoneJAPAN TOBACCO INC·Filed 1992·Granted Jun 21, 1994·42 cites·14 claims
- 0379US5112994AMethod of producing (S)-4-hydroxymethyl-γ-lactoneJAPAN TOBACCO INC·Filed 1990·Granted May 12, 1992·20 cites·11 claims
- 0474US5284973AMethod of preparing an acid additional salt of delta-aminolevulinic acidJAPAN TOBACCO INC·Filed 1993·Granted Feb 8, 1994·14 cites·13 claims
- 0574US4946999ANovel intermediates for synthesis of trichostatic acid or trichostatin A, and processes for preparing trichostatic acid and trichostatin AJAPAN TOBACCO INC·Filed 1989·Granted Aug 7, 1990·11 cites·2 claims
- 0664US4994585AMethod of preparing (S)-γ-hydroxymethyl-α, β-butenolideJAPAN TOBACCO INC·Filed 1990·Granted Feb 19, 1991·8 cites·5 claims
- 0762US5412111AMethod of preparing (3R,4R)-3-hydroxy-4-hydroxymethyl-4-butanolideJAPAN TOBACCO INC·Filed 1993·Granted May 2, 1995·15 cites·12 claims
- 0861US5451689AMethod of preparing epoxideJAPAN TOBACCO INC·Filed 1993·Granted Sep 19, 1995·7 cites·14 claims
- 0948US5468881AMethod of producing cis-whiskey lactoneJAPAN TOBACCO INC·Filed 1991·Granted Nov 21, 1995·4 cites·10 claims
- 1047US5319108AMethod for producing (R,Z)-5-tetradecen-4-olideJAPAN TOBACCO INC·Filed 1991·Granted Jun 7, 1994·3 cites·9 claims
- 1143US5216177AMethod of preparing trans-3,4-disubstituted-γ-lactonesJAPAN TOBACCO INC·Filed 1991·Granted Jun 1, 1993·2 cites·41 claims
- 1238US4980485AMethod of manufacturing optically-active periplanone-bJAPAN TOBACCO INC·Filed 1989·Granted Dec 25, 1990·1 cites·32 claims
- 1331US5416204AMethod for preparing 2'-3'-dideoxy-β-nucleosides using 2,2-dideoxy-di(organothio)-pentofuranose intermediatesJAPAN TOBACCO INC·Filed 1992·Granted May 16, 1995·0 cites·4 claims
- 1429US5374744AMethod for manufacturing 4-substituted-Y-lactone and novel substanceJAPAN TOBACCO INC·Filed 1992·Granted Dec 20, 1994·0 cites·21 claims
Join the waitlist — get patent alerts
Get an alert when Koshi Koseki files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →