Hakuto Co., Ltd.
13Patents
3Active
13Granted
34Portfolio score
Filing activity: Sep 26, 1979 → Jun 20, 2012 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4743325A | Method of sticking film sheet on panel surface | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4659419A | Laminator for sticking film sheet on panel surface | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5409571A | Scale deposit inhibitor for kraft digesters and method for controlling scale deposition in kraft digesters | Textiles; Paper | 20 | Expired |
| US5175279A | Polysaccharide, and water absorbent, moisture absorbent or humectant and thickening agent chiefly made of the polysaccharide | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4264397A | Apparatus for sticking nonconductive tape having plating perforations to sheet metal | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5154277A | Electronic parts separation mechanism | Performing Operations; Transporting | 4 | Expired |
| US8309109B2 | Cosmetic and method for production thereof | Human Necessities | 3 | Active |
| US8246858B2 | Process for inhibiting polymerization of an aromatic vinyl compound | Chemistry; Metallurgy | 2 | Active |
| US4800611A | Plate cleaning apparatus and cleaning roller therefor | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4722629A | Adaptor for electronic element stick | Electricity | 1 | Expired |
| US8551364B2 | Process for inhibiting polymerization of an aromatic vinyl compound | Chemistry; Metallurgy | 0 | Active |
| US6740528B2 | Method for measuring concentration of stable free radical compound | Emerging Cross-Sectional Technologies | 0 | Expired |
| US7202391B2 | Process for inhibiting polymerization of an aromatic vinyl compound | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.