Yoshihiro Ikeda
105Patents
15h-index
190Co-inventors
89Inventor score
Filing activity: May 13, 1982 → Sep 10, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6468670B1 | Magnetic recording disk with composite perpendicular recording layer | Emerging Cross-Sectional Technologies | 99 | Expired |
| US6835475B2 | Dual-layer perpendicular magnetic recording media with laminated underlayer formed with antiferromagnetically coupled films | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5202275A | Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4425255A | Regeneration method of catalysts | Performing Operations; Transporting | 27 | Expired |
| US7145982B2 | X-ray CT apparatus and method of calculating blood-flow information | Human Necessities | 26 | Expired |
| US5331191A | Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5098669A | Stirring reactor for viscous materials | Performing Operations; Transporting | 22 | Expired |
| US10283566B2 | Three-dimensional memory device with through-stack contact via structures and method of making thereof | Electricity | 20 | Active |
| US7015090B2 | Method of manufacturing a semiconductor device having trenches for isolation and capacitor formation trenches | Electricity | 19 | Expired |
| US7301815B2 | Semiconductor memory device comprising controllable threshould voltage dummy memory cells | Physics | 18 | Expired |
| US7054406B2 | X-ray CT apparatus and method of measuring CT values | Human Necessities | 18 | Expired |
| US6537638B2 | Magnetic recording disk with perpendicular magnetic recording layer and multilayered underlayer structure | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7550210B2 | Perpendicular magnetic recording medium with multiple exchange-coupled magnetic layers having substantially similar anisotropy fields | Physics | 16 | Active |
| US7485680B2 | Process for producing rubbery polymer particle and process for producing resin composition containing the same | Chemistry; Metallurgy | 16 | Expired |
| US7015540B2 | Semiconductor memory device | Physics | 15 | Expired |
| US8202636B2 | Magnetic recording capping layer with multiple layers for controlling anisotropy for perpendicular recording media | Physics | 15 | Active |
| US5780882A | Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7912269B2 | Medical image processing apparatus and method of processing medical image | Human Necessities | 14 | Active |
| US7774041B2 | Method and apparatus for calculating index concerning local blood flow circulations | Physics | 11 | Active |
| US6731187B2 | Dual mode piezoelectric filter with a relay electrode on the casing substrate | Electricity | 11 | Expired |
| US5413835A | Magnetic recording medium having an underlayer of low melting point metal alloy in the form of spherically shaped structures | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5739589A | Semiconductor integrated circuit device process for fabricating the same and apparatus for fabricating the same | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7998607B2 | Partially-oxidized cap layer for hard disk drive magnetic media | Physics | 9 | Active |
| US5341672A | Method for measurement of polymer molecular weight based upon a temperature difference | Physics | 8 | Expired |
| US8168310B2 | Perpendicular magnetic recording media with oxide-containing exchange coupling layer | Physics | 8 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.