Inventor
MATSUZAWA HIROSHI
JP20 patents
⚠️ This page may combine multiple inventors who share the name “MATSUZAWA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEIJIN LTD
4 patentsUS5196147AMar 23, 1993
Organic nonlinear optical substance
TEIJIN LTD35 citations92
US4865916ASep 12, 1989
Magnetic recording medium method for producing the same, and method for recording and reproduction using the same and magnetic head
TEIJIN LTD16 citations72
US5013583AMay 7, 1991
Method of producing a magnetic recording medium
TEIJIN LTD4 citations61
US4495343AJan 22, 1985
Visible light-sensitive polyester polymer and visible light-sensitive resin composition containing said polymer
TEIJIN LTD1 citations52
SONY CORP
4 patentsUS6782188B1Aug 24, 2004
Data recording apparatus and data recording method, and data editing apparatus and data editing method
SONY CORP21 citations90
US5276517AJan 4, 1994
Video equalizing circuit
SONY CORP9 citations73
US5255126AOct 19, 1993
AGC circuit with constant envelope circuit for reproduced RF signals from plural channels
SONY CORP3 citations62
US7421189B2Sep 2, 2008
Data recording device, data recording method, data editing device, and data editing method
SONY CORP2 citations60
TOPPAN PRINTING CO LTD
3 patentsUS7498074B2Mar 3, 2009
Metal photoetching product and production method thereof
TOPPAN PRINTING CO LTD5 citations60
US7546803B2Jun 16, 2009
Letterpress printing machine
TOPPAN PRINTING CO LTD3 citations57
US7584535B2Sep 8, 2009
Method of manufacturing multi-layer wiring board
TOPPAN PRINTING CO LTD5 citations56