Inventor
Katsutoshi Itani
Inventor
Fuji, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C23Fprimary
C23FNon-mechanical removal of metallic material from surface38%
H05KPrinted circuits23%
C23GCleaning or de-greasing of metallic material by chemical methods other than electrolysis15%
C01BNon-metallic elements8%
C07CAcyclic or carbocyclic compounds8%
C22BProduction and refining of metals8%
PatentTitleYear
5,223,087'Chemical solubilizing agent for tin or tin alloy'19935,211,927'Method for stabilizing acidic aqueous hydrogen peroxide solution containing copper'19935,030,373'Surface-treating agents for copper and copper alloy'19914,110,237'Compositions containing a diazine and a halogen compound for catalyzing copper etching solutions'19783,939,089'Etching solutions for copper and copper alloys and etching process using the same'19763,936,332'Copper and copper alloy etching solutions and process'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1993Patents assigned to TOKAI ELECTRO CHEMICAL CO (6)· patent assignee history
1976–1993Based in Fuji, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOKAI ELECTRO CHEMICAL CO | 6 | 1976–1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fuji, JP | 6 | 1976–1993 |