Inventor · disambiguated record
Hirohiko Yamamoto
Also filed as: YAMAMOTO HIROHIKO
4 granted patents·224 citations·filing 1995–2001
79Inventor score
Top patents by PatentIndex Score
4 records- 0195US5877174A2,3-diketopiperazine derivatives or their saltsTOYAMA CHEMICAL CO LTD·Filed 1995·Granted Mar 2, 1999·136 cites·31 claims
- 0292US6153613A2,3-diketopiperazine derivatives or their saltsTOYOMA CHEMICAL CO LTD·Filed 1998·Granted Nov 28, 2000·80 cites·19 claims
- 0354US6482835B2Processes for producing 7-isoindoline-quinolonecarboxylic acid derivative and its intermediate, as well as salt of 7-isoindoline-quinolonecarboxylic acid derivative, its hydrate and composition comprising the same as active ingredientTOYAMA CHEMICAL CO LTD·Filed 2001·Granted Nov 19, 2002·0 cites·2 claims
- 0450US6337399B1Processes for producing 7-isoindolinequinolonecarboxylic derivatives and intermediates therefor, salts of 7-isoindolinequinolonecarboxylic acids, hydrates thereof, and composition containing the same as active ingredientTOYAMA CHEMICAL CO LTD·Filed 1998·Granted Jan 8, 2002·8 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →