Inventor · disambiguated record
Toshihiko Umeda
Also filed as: UMEDA TOSHIHIKO
13 granted patents·3 pending applications·446 citations·filing 1992–2009
93Inventor score
Top patents by PatentIndex Score
16 records- 0191US6635267B1Hyaluronic acid gel, process for the preparation thereof and medical materials containing the sameDENKI KAGAKU KOGYO KK·Filed 1999·Granted Oct 21, 2003·120 cites·16 claims
- 0286US6638538B1Hyaluronic acid gel composition, process for producing the same, and medical material containing the sameDENKI KAGAKU KOGYO KK·Filed 2000·Granted Oct 28, 2003·62 cites·31 claims
- 0385US5453570AKaraoke authoring apparatusRICOH KK·Filed 1993·Granted Sep 26, 1995·63 cites·5 claims
- 0483USD457509STelephoneHITACHI LTD·Filed 2001·Granted May 21, 2002·30 cites·1 claims
- 0581US7014860B1Hyaluronic acid gel, process for producing the same, and medical material containing the sameDENKI KAGAKU KOGYO KK·Filed 2000·Granted Mar 21, 2006·46 cites·21 claims
- 0675USD422977SElectronic exchangeHITACHI LTD·Filed 1998·Granted Apr 18, 2000·22 cites·1 claims
- 0774US8249914B2Service supporting system, service supporting server and service supporting methodUMEDA TOSHIHIKO·Filed 2003·Granted Aug 21, 2012·16 cites·8 claims
- 0872US5499922ABacking chorus reproducing device in a karaoke deviceRICOH KK·Filed 1994·Granted Mar 19, 1996·28 cites·4 claims
- 0971USD464644STelephone exchange equipmentHITACHI LTD·Filed 2001·Granted Oct 22, 2002·18 cites·1 claims
- 1066US7514097B1Use of soluble cellulose derivative having been made hardly soluble in water and process for producing the sameDENKI KAGAKU KOGYO KK·Filed 2000·Granted Apr 7, 2009·13 cites·14 claims
- 1159US7807657B2Separate type medical materialDENKI KAGAKU KOGYO KK·Filed 2008·Granted Oct 5, 2010·0 cites·12 claims
- 1257US5268904AISDN terminal equipment control methodRICOH KK·Filed 1992·Granted Dec 7, 1993·25 cites·15 claims
- 1355US6671375B1Telephone circuitHITACHI LTD·Filed 2000·Granted Dec 30, 2003·3 cites·11 claims
- 1450US2009226503A1Adhesion inhibiting material for vertebral/spinal operationHARO HIROTAKA·Filed 2009·Application pending·0 cites
- 1545US2006135469A1Separate type medical materialDENKI KAGAKU KOGYO KK·Filed 2002·Application pending·0 cites
- 1643US2007020314A1Adhesion inhibiting material for vertebral/spinal operationHARO HIROTAKA·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →