P

Inventor

UMEDA TOSHIHIKO

JP13 patents
⚠️ This page may combine multiple inventors who share the name “UMEDA TOSHIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DENKI KAGAKU KOGYO KK

5 patents
US6635267B1Oct 21, 2003

Hyaluronic acid gel, process for the preparation thereof and medical materials containing the same

DENKI KAGAKU KOGYO KK120 citations96
US6638538B1Oct 28, 2003

Hyaluronic acid gel composition, process for producing the same, and medical material containing the same

DENKI KAGAKU KOGYO KK62 citations94
US7014860B1Mar 21, 2006

Hyaluronic acid gel, process for producing the same, and medical material containing the same

DENKI KAGAKU KOGYO KK46 citations91
US7514097B1Apr 7, 2009

Use of soluble cellulose derivative having been made hardly soluble in water and process for producing the same

DENKI KAGAKU KOGYO KK13 citations81
US7807657B2Oct 5, 2010

Separate type medical material

DENKI KAGAKU KOGYO KK0 citations49

HITACHI LTD

4 patents
USD464644SOct 22, 2002

Telephone exchange equipment

HITACHI LTD18 citations92
USD457509SMay 21, 2002

Telephone

HITACHI LTD30 citations92
USD422977SApr 18, 2000

Electronic exchange

HITACHI LTD22 citations90
US6671375B1Dec 30, 2003

Telephone circuit

HITACHI LTD3 citations60

RICOH KK

3 patents
US5453570ASep 26, 1995

Karaoke authoring apparatus

RICOH KK63 citations96
US5268904ADec 7, 1993

ISDN terminal equipment control method

RICOH KK25 citations92
US5499922AMar 19, 1996

Backing chorus reproducing device in a karaoke device

RICOH KK28 citations86

UMEDA TOSHIHIKO

1 patent
US8249914B2Aug 21, 2012

Service supporting system, service supporting server and service supporting method

UMEDA TOSHIHIKO16 citations79