Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7914627 | Processing solution for forming hexavalent chromium free and corrosion resistant conversion film on zinc or zinc alloy plating layers, hexavalent chromium free and corrosion resistant conversion film, method for forming the same | Shigemi Tanaka, Manabu Inoue, Tomitaka Yamamoto | 2011-03-29 |
| 7745008 | Processing solution for forming hexavalent chromium free and corrosion resistant conversion film on zinc or zinc alloy plating layers, hexavalent chromium free and corrosion resistant conversion film, method for forming the same | Shigemi Tanaka, Manabu Inoue, Tomitaka Yamamoto | 2010-06-29 |
| 6858098 | PROCESSING SOLUTION FOR FORMING HEXAVALENT CHROMIUM FREE AND CORROSION RESISTANT CONVERSION FILM ON ZINC OR ZINC ALLOY PLATING LAYERS, HEXAVALENT CHROMIUM FREE AND CORROSION RESISTANT CONVERSION FILM, METHOD FOR FORMING THE SAME | Shigemi Tanaka, Manabu Inoue, Tomitaka Yamamoto | 2005-02-22 |
| 6719852 | PROCESSING SOLUTION FOR FORMING HEXAVALENT CHROMIUM FREE AND CORROSION RESISTANT CONVERSION FILM ON ZINC OR ZINC ALLOY PLATING LAYERS, HEXAVALENT CHROMIUM FREE AND CORROSION RESISTANT CONVERSION FILM AND METHOD FOR FORMING THE SAME | Shigemi Tanaka, Manabu Inoue, Tomitaka Yamamoto | 2004-04-13 |
| 5911866 | Acid tin-silver alloy electroplating bath and method for electroplating tin-silver alloy | Satoshi Yuasa | 1999-06-15 |
| 5665172 | Method for washing an article with composition having a brominated hydrocarbon and stabilizer | Shigemi Tanaka | 1997-09-09 |
| 5630929 | Highly corrosion-resistant zincate type zinc-iron-phosphorus alloy plating bath and plating method using the plating bath | Satoshi Yuasa, Junko Ozawa | 1997-05-20 |
| 5582709 | Zinc-cobalt alloy-plating alkaline bath and plating method using the same | Shigemi Tanaka, Toshio Igari, Takeshi Kunihiro | 1996-12-10 |
| 5492645 | Deterging solvent composition with n-or iso-propyl bromide, a nitroalkane, and an ethylene glycol monoalkyl ether | Shigemi Tanaka | 1996-02-20 |
| 4889602 | Electroplating bath and method for forming zinc-nickel alloy coating | Toshiaki Murai, Hitoshi Sakurai, Shuji Igarashi, Haruo Hanagata, Hidesato Igarashi | 1989-12-26 |