Jun Yoshikawa
112Patents
12h-index
161Co-inventors
89Inventor score
Filing activity: Mar 1, 1982 → Jan 11, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD694790S1 | Baffle plate for manufacturing semiconductor | General | 433 | Active |
| USD697038S1 | Baffle plate | General | 424 | Active |
| US5815884A | Dust indication system for vacuum cleaner | Human Necessities | 169 | Expired |
| US6055702A | Vacuum cleaner | Human Necessities | 144 | Expired |
| US6798972B1 | Image reproducing apparatus and image reproducing method | Electricity | 62 | Expired |
| US5788763A | Manufacturing method of a silicon wafer having a controlled BMD concentration | Electricity | 61 | Expired |
| US5492229A | Vertical boat and a method for making the same | Chemistry; Metallurgy | 48 | Expired |
| US6411770B1 | Data recording method and apparatus | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4474726A | Method of producing a channeled plastic pipe with closed channel ends | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5744401A | Silicon wafer manufacturing method eliminating final mirror-polishing step | Electricity | 16 | Expired |
| US6453117B1 | Imaging system | Electricity | 12 | Expired |
| US9522311B2 | Iron golf club head and iron golf club | Human Necessities | 12 | Active |
| USD694791S1 | Baffle plate for manufacturing semiconductor | General | 12 | Active |
| US7122490B2 | Aluminum nitride materials and members for use in the production of semiconductors | Chemistry; Metallurgy | 11 | Expired |
| US6694339B1 | File management device and method thereof, and audio visual data recording/reproducing device and method thereof | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6607836B2 | Material of low volume resistivity, an aluminum nitride sintered body and a member used for the production of semiconductors | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6279055A | Data output device and data output method | Physics | 8 | Expired |
| US6711344B1 | Data reproduction using time slot allocation | Physics | 8 | Expired |
| US6374258B1 | Data recording and reproducing apparatus and method for recording and reproducing data from a non-linear recording medium | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6349349B1 | System for linking a main control unit to data receiving and transmitting units and a first and second storage units by a network | Electricity | 7 | Expired |
| US5343450A | Timer operation management apparatus | Physics | 7 | Expired |
| US6577814B1 | Video data recording and reproduction using time slot allocation | Physics | 7 | Expired |
| USD645486S1 | Dielectric window for plasma processing device | General | 6 | Expired |
| US6884742B2 | Aluminum nitride ceramics, members for use in a system for producing semiconductors, corrosion resistant members and conductive members | Chemistry; Metallurgy | 5 | Expired |
| US6919286B2 | Aluminum nitride ceramics, members for use in a system for producing semiconductors, and corrosion resistant members | Chemistry; Metallurgy | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.