Inventor
Toshinori Takao
Inventor
Tokushima, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Qprimary
H01QAntennas, i.e. radio aerials15%
H05KPrinted circuits15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%
Y10TTechnical subjects covered by former us classification15%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%
C08JWorking-up8%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients8%
C09KMaterials for miscellaneous applications, not provided for elsewhere8%
G01RMeasuring electric variables8%
PatentTitleYear
6,479,140'Radio wave absorbing materials, radio wave absorber, and radio wave anechoic chamber and the like made by using the same'20026,419,772'Method for attaching radio wave absorber and structure for attaching the same'20026,399,201'Blowing agent powder and process for producing the same'20024,226,943'Foamable composition of vinyl chloride polymers and method of producing open cell sheet'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980Patents assigned to OTSUKA KAGAKU YAKUHIN (1)· patent assignee history
1980Based in Naruto, JP· patent location history
2002Patents assigned to OTSUKA CHEMICAL CO LTD (3)· patent assignee history
2002Patents assigned to OTSUKA SCIENCE CO LTD (1)· patent assignee history
2002Based in Tokushima, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| OTSUKA CHEMICAL CO LTD | 3 | 2002 |
| OTSUKA KAGAKU YAKUHIN | 1 | 1980 |
| OTSUKA SCIENCE CO LTD | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokushima, JP | 3 | 2002 |
| Naruto, JP | 1 | 1980 |