Inventor
Hiroshi Itayama
Inventor
Kyoto, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds25%
C08LCompositions of macromolecular compounds25%
A61KPreparations for medical, dental or toiletry purposes8%
A61QSpecific use of cosmetics or similar toiletry preparations8%
C11DDetergent compositions8%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons8%
G11BInformation storage based on relative movement between record carrier and transducer8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
6,680,286'Detergent composition comprising a quaternary ammonium salt of a carboxyl containing polymer'20046,641,804'Hair treatment and method of treating hair using compounded resin containing urethane resin'20035,652,320'Polymer containing N-sulfoamino group, fiber formed therefrom, and magnetic recording medium containing the same'19975,578,680'Vibration-absorbing elastomeric composite, process for making the same, and vibration damper comprising the same'19965,221,785'Polymer composite and rubber contacts'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2004Patents assigned to SANYO CHEMICAL IND LTD (5)· patent assignee history
1993–2004Based in Kyoto, JP· patent location history
1997Based in Ohtsu, JP· patent location history
2004Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SANYO CHEMICAL IND LTD | 5 | 1993–2004 |
| MATSUSHITA ELECTRIC INDUSTRIAL CO LTD | 1 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kyoto, JP | 4 | 1993–2004 |
| Ohtsu, JP | 1 | 1997 |