Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11987888 | Trivalent chromium chemical conversion treatment liquid for zinc or zinc alloy base and chemical conversion treatment method using the same | Ryouji IWANAGA, Manabu Inoue, Takahiro Fujino | 2024-05-21 |
| 9249509 | Method for regenerating solution for nitric acid activation treatment of zinc-plated metal member surface, and regeneration treatment apparatus using the same | Ryuta Kashio | 2016-02-02 |
| 8337641 | Treatment solution for forming black hexavalent chromium-free chemical conversion coating film on zinc or zinc alloy | Naoki Okabe | 2012-12-25 |
| 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 | Katsuhide Oshima, Shigemi Tanaka, Manabu Inoue | 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 | Katsuhide Oshima, Shigemi Tanaka, Manabu Inoue | 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 | Katsuhide Oshima, Shigemi Tanaka, Manabu Inoue | 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 | Katsuhide Oshima, Shigemi Tanaka, Manabu Inoue | 2004-04-13 |
| 5938861 | Method for forming a rust proof film | Manabu Inoue, Tadahiro Ohnuma, Go Sato | 1999-08-17 |
| 5843338 | Water-soluble composition for water-repellent treatments of zinc and zinc alloy and method for water repellent treatment | Manabu Inoue, Tadahiro Ohnuma, Go Sato | 1998-12-01 |
| 5743971 | Liquid rust proof film-forming composition and rust proof film-forming method | Manabu Inoue, Tadahiro Ohnuma, Go Sato | 1998-04-28 |
| 5565042 | Black chromate solution | Hitoshi Sakurai, Seiji Kishikawa, Tadahiro Itoh | 1996-10-15 |