Inventor
Keizo Nanba
Inventor
Nagoya, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification28%
B23KSoldering or unsoldering22%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application17%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%
C22CAlloys6%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys6%
E04CStructural elements6%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
4,931,340'Honeycomb panel structure'19904,785,092'Aluminum brazing material for use in aluminum heat exchanger'19884,781,888'Aluminum brazing material for use in aluminum heat exchanger'19884,673,551'Fin stock material for use in plate fin heat exchanger adapted for superhigh pressure service'19874,636,356'Aluminum brazing alloy'19874,626,295'Method of producing aluminum alloy structures'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1988Patents assigned to SUMITOMO PRECISION PROD CO (5)· patent assignee history
1986–1990Based in Nagoya, JP· patent location history
1987–1990Patents assigned to SUMITOMO LIGHT METAL IND (3)· patent assignee history
1987Based in Aichi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUMITOMO PRECISION PROD CO | 5 | 1986–1988 |
| SUMITOMO LIGHT METAL IND | 3 | 1987–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nagoya, JP | 5 | 1986–1990 |
| Aichi, JP | 1 | 1987 |