Kazuo Nakashima
53Patents
13h-index
78Co-inventors
87Inventor score
Filing activity: Apr 12, 1983 → Jun 21, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5418852A | Unauthorized use prevention method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus | Physics | 121 | Expired |
| US5214627A | Optical disk having read-exclusive and write-enable regions | Physics | 76 | Expired |
| US5982886A | Unauthorized use preventing method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus | Physics | 52 | Expired |
| US5661800A | Method and manufacture for preventing unauthorized use by judging the corresponding relationship between logical and physical addresses | Physics | 48 | Expired |
| US5875247A | System for decrypting encrypted software | Physics | 37 | Expired |
| US5402339A | Apparatus for making music database and retrieval apparatus for such database | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5930825A | Method and apparatus for preventing unauthorized use by comparing medium identifications | Physics | 30 | Expired |
| US5708650A | Multiple format interchangeable optical recording medium and method of controlling same | Physics | 23 | Expired |
| US5684785A | Optical disk and method of preventing fraudulent use of optical disk rotation synchronous control system | Physics | 23 | Expired |
| US5752009A | Recording medium for electronic publications including multiple format emulation | Physics | 16 | Expired |
| US4847074A | Whitening cosmetic | Human Necessities | 14 | Expired |
| US6278984A | Software processing apparatus writing software to a medium only if identification information in the software corresponds to identification information in the medium | Physics | 14 | Expired |
| US5422871A | Method and apparatus for producing an optical disk having a read-only area and a rewritable area | Physics | 13 | Expired |
| US6189014A | File management method for interchangeable storage media | Physics | 12 | Expired |
| US9064108B2 | Storage device, storage system, and authentication method | Physics | 11 | Active |
| US5835589A | Optical recording medium to store and access large volumes of data | Physics | 10 | Expired |
| US4496442A | Process for generating hydrogen gas | Chemistry; Metallurgy | 8 | Expired |
| US8782804B2 | Storage device, storage system, and authentication method | Physics | 7 | Active |
| US8713328B2 | Code conversion apparatus, code conversion method, and computer product | Physics | 7 | Active |
| US5809300A | Removable storage medium and computer system using the same | Physics | 5 | Expired |
| US10388428B2 | Electric wire with connector, and wire harness | Electricity | 4 | Active |
| US10079439B2 | Metal surface coating composition and terminal-equipped covered electrical wire using same | Electricity | 3 | Active |
| US10003177B2 | Curing material, wire harness, and manufacturing method thereof | Electricity | 3 | Active |
| US9081943B2 | Storage device, protection method, and electronic apparatus | Physics | 3 | Active |
| US10290396B2 | Wiring harness having waterproofing agent with reactive adhesive | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.