Kanto Kagaku Kabushiki Kaisha
107Patents
43Active
107Granted
48Portfolio score
Filing activity: Apr 23, 1985 → Dec 23, 2020 · 17 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6864044B2 | Photoresist residue removing liquid composition | Physics | 69 | Expired |
| US6388146B1 | Polymerizable compound, polymerizable resin composition, cured polymer and liquid crystal display device | Chemistry; Metallurgy | 59 | Expired |
| US4698317A | Porous cordierite ceramics, a process for producing same and use of the porous cordierite ceramics | Physics | 42 | Expired |
| US4711769A | Calcium-phosphorus-apatite having novel properties and process for preparing the same | Performing Operations; Transporting | 32 | Expired |
| US5205928A | Process for the preparation of microspherical sintered bodies of hydroxyapatite and a chromatographic packing material comprising the microspherical sintered bodies of hydroxyapatite | Performing Operations; Transporting | 28 | Expired |
| US6730644B1 | Cleaning solution for substrates of electronic materials | Electricity | 22 | Expired |
| US6080709A | Cleaning solution for cleaning substrates to which a metallic wiring has been applied | Electricity | 22 | Expired |
| US4871693A | Porous cordierite ceramics | Physics | 21 | Expired |
| US5470381A | Electroless gold plating solution | Chemistry; Metallurgy | 20 | Expired |
| US4836994A | Calcium-phosphorus-apatite having novel properties and process for preparing the same | Performing Operations; Transporting | 19 | Expired |
| US5108956A | Process for the preparation of microspherical sintered bodies of hydroxyapatite and a chromatographic packing material comprising the microspherical sintered bodies of hydroxyapatite | Performing Operations; Transporting | 16 | Expired |
| US5709911A | Polymerizable compound and liquid crystal display device using the same | Chemistry; Metallurgy | 12 | Expired |
| US7138362B2 | Washing liquid composition for semiconductor substrate | Chemistry; Metallurgy | 12 | Expired |
| US5750213A | Polymerizable compound and liquid crystal display device using the same | Physics | 11 | Expired |
| US5494605A | P-terphenyl derivatives and liquid crystalline compositions | Chemistry; Metallurgy | 11 | Expired |
| US7084097B2 | Cleaning solution for substrates of electronic materials | Electricity | 10 | Expired |
| US7087562B2 | Post-CMP washing liquid composition | Chemistry; Metallurgy | 10 | Expired |
| US6231677A | Photoresist stripping liquid composition | Physics | 10 | Expired |
| US4967782A | Process and apparatus for recovering and reusing resist composition | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6086665A | Solution for forming ferroelectric film and method for forming ferroelectric film | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7022878B2 | Organic borate compounds and the nonaqueous electrolytes and lithium secondary batteries using the compounds | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7563754B2 | Composition for removing photoresist residue and polymer residue | Physics | 6 | Active |
| US6787293B2 | Photoresist residue remover composition | Physics | 6 | Expired |
| US7896970B2 | Semiconductor substrate cleaning liquid and semiconductor substrate cleaning process | Chemistry; Metallurgy | 5 | Active |
| US5580847A | Aqueous ammonia composition | Electricity | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.