Youji Azuma
Inventor
Stats
- 2 US patents issued
- 2 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 2 US Patents Issued
- 2 US Applications Filed
- 5 Total Citation Count
- Jun 2, 1999 Most Recent Filing
- Apr 26, 1990 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| Shimizu Construction Co., Ltd. | 1
| 1990
|
| MITSUBISHI HEAVY INDUSTRIES TUNNELING MACHINERY & GEOTECHNOLOGY CO., LTD. | 1
| 1990
|
| Nissin Unyu Kogyo Co., Ltd. | 1
| 1999
|
Inventor Addresses
| Address | Duration |
|---|---|
| Shimonoseki, JP | Dec 05, 00 - Dec 05, 00 |
| Tokyo, JP | Jun 22, 93 - Jun 22, 93 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| C25F: | PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR | 1 |
| E21D: | SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 6156187 | 2000 | Electrolytic integrated polishing method for external surface of metallic tubes and photosensitive drum substrate prepared thereby | 2 |
| 5221160 | 1993 | Subterranean connecting method for construction of shield tunnel and connecting apparatus therefor | 3 |
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