Inventor
ICHIKAWA HISAYOSHI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “ICHIKAWA HISAYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI ELECTR ENG
6 patentsUS5885143AMar 23, 1999
Disk texturing apparatus
HITACHI ELECTR ENG27 citations90
US5092011AMar 3, 1992
Disk washing apparatus
HITACHI ELECTR ENG41 citations90
US6004487ADec 21, 1999
Method and apparatus for laser-texturing disk surfaces
HITACHI ELECTR ENG24 citations89
US5879576AMar 9, 1999
Method and apparatus for processing substrates
HITACHI ELECTR ENG50 citations89
US5952014ASep 14, 1999
Apparatus for texturing magnetic data recording disc surfaces
HITACHI ELECTR ENG7 citations72
US6790300B2Sep 14, 2004
Method and apparatus for bonding substrate plates together through gap-forming sealer material
HITACHI ELECTR ENG9 citations67
HITACHI HIGH TECH CORP
3 patentsUS7600993B2Oct 13, 2009
Method and apparatus for pattern transfer, and annular recording medium
HITACHI HIGH TECH CORP4 citations61
US8034277B2Oct 11, 2011
Method and apparatus for pattern transfer, and annular recording medium
HITACHI HIGH TECH CORP0 citations51
US7964135B2Jun 21, 2011
Method and apparatus for imprinting energy ray-setting resin, and discs and semiconductor devices with imprinted resin layer
HITACHI HIGH TECH CORP0 citations40