Inventor
TAKAHASHI KOYATA
JP13 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI KOYATA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSOH CORP
11 patentsUS6902814B2Jun 7, 2005
Quartz glass parts, ceramic parts and process of producing those
TOSOH CORP30 citations92
US6506469B2Jan 14, 2003
Surface-side reproduction type optical recording medium
TOSOH CORP25 citations92
US6802073B1Oct 5, 2004
Magneto-optical recording medium
TOSOH CORP14 citations81
US7081290B2Jul 25, 2006
Quartz glass thermal sprayed parts and method for producing the same
TOSOH CORP15 citations80
US6118736ASep 12, 2000
Magneto-optical recording medium having a reading layer in which transferred recording marks are extended
TOSOH CORP8 citations73
US6804189B2Oct 12, 2004
Near field optical recording medium
TOSOH CORP11 citations72
US7338699B2Mar 4, 2008
Island projection-modified part, method for producing the same, and apparatus comprising the same
TOSOH CORP2 citations60
US6798734B1Sep 28, 2004
Optical recording medium having address pits in the header region connecting with each other
TOSOH CORP5 citations59
US11168393B2Nov 9, 2021
Gallium nitride sintered body or gallium nitride molded article, and method for producing same
TOSOH CORP0 citations56
US7531232B2May 12, 2009
Component for vacuum apparatus, production method thereof and apparatus using the same
TOSOH CORP1 citations51
US7504164B2Mar 17, 2009
Corrosion-resistant member and process of producing the same
TOSOH CORP0 citations51