Inventor
SHIBAHASHI YUTAKA
JP25 patents
⚠️ This page may combine multiple inventors who share the name “SHIBAHASHI YUTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PILOT INK CO LTD
20 patentsUS4720301AJan 19, 1988
Reversible heat sensitive recording composition
PILOT INK CO LTD156 citations99
US4421560ADec 20, 1983
Thermochromatic materials
PILOT INK CO LTD171 citations98
US5688592ANov 18, 1997
Thermochromic laminate comprising light intercepting pigment and light stabilizer
PILOT INK CO LTD62 citations96
US5558699ASep 24, 1996
Thermochromic color-memory composition
PILOT INK CO LTD56 citations96
US5085607AFeb 4, 1992
Toy that stably exhibits different colors with indicator for proper temperature application
PILOT INK CO LTD59 citations96
US5011445AApr 30, 1991
Color memory toy set
PILOT INK CO LTD58 citations96
US4920991AMay 1, 1990
Thermochromic artificial nail
PILOT INK CO LTD78 citations96
US4681791AJul 21, 1987
Thermochromic textile material
PILOT INK CO LTD181 citations96
US4732810AMar 22, 1988
Reversible temperature-indicating composition
PILOT INK CO LTD76 citations95
US4554565ANov 19, 1985
Method of producing reversible thermochromic display
PILOT INK CO LTD71 citations95
US5558700ASep 24, 1996
Reversible thermochromic composition
PILOT INK CO LTD88 citations94
US6444313B1Sep 3, 2002
Thermochromic acrylic synthetic fiber, its processed article, and process for producing thermochromic acrylic synthetic fiber
PILOT INK CO LTD37 citations92
US5879438AMar 9, 1999
Method for improving light-fastness of reversible thermochromic compositions at the time of color extinguishment
PILOT INK CO LTD28 citations92
US5858914AJan 12, 1999
Thermochromic coloring color-memory footwear
PILOT INK CO LTD26 citations92
US5352649AOct 4, 1994
Thermochromic laminate member, and composition and sheet for producing the same
PILOT INK CO LTD48 citations92
US6048387AApr 11, 2000
Reversible thermochromic composition
PILOT INK CO LTD41 citations91
US5079049AJan 7, 1992
Artificial plant that stably exhibits different colors
PILOT INK CO LTD20 citations82
US5873932AFeb 23, 1999
Method for improving light-fastness of reversible thermochromic compositions at the time of color development
PILOT INK CO LTD16 citations74
US7575386B2Aug 18, 2009
Color-memorizing photochromic writing instrument, color-memorizing photochromic writing instrument set using the same and method for alternately expressing color-memorizing photochromic function of writing image
PILOT INK CO LTD5 citations62
US6713431B2Mar 30, 2004
Metallic luster tone thermochromic laminate member
PILOT INK CO LTD0 citations51