Ken Ishitobi
9Patents
6h-index
9Co-inventors
52Inventor score
Filing activity: Oct 11, 1988 → Aug 21, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4915710A | Abrasive composition and process for polishing | Chemistry; Metallurgy | 25 | Expired |
| US4929257A | Abrasive composition and process for polishing | Chemistry; Metallurgy | 21 | Expired |
| US5935278A | Abrasive composition for magnetic recording disc substrate | Chemistry; Metallurgy | 10 | Expired |
| US6488729B1 | Polishing composition and method | Chemistry; Metallurgy | 8 | Expired |
| US6152976A | Abrasive composition for disc substrate, and process for polishing disc substrate | Chemistry; Metallurgy | 8 | Expired |
| US5609657A | Composition for texturing magnetic disk | Physics | 6 | Expired |
| US4883502A | Abrasive composition and process for polishing | Chemistry; Metallurgy | 6 | Expired |
| US6607571B2 | Polishing composition and method | Chemistry; Metallurgy | 5 | Expired |
| US5626640A | Composition adapted for use in texturing process for magnetic disc | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.