Inventor · disambiguated record
Yutaka Shibahashi
Also filed as: SHIBAHASHI YUTAKA
25 granted patents·2 pending applications·1,522 citations·filing 1981–2012
97Inventor score
Top patents by PatentIndex Score
27 records- 0198US4720301AReversible heat sensitive recording compositionPILOT INK CO LTD·Filed 1985·Granted Jan 19, 1988·156 cites·2 claims
- 0298US4421560AThermochromatic materialsPILOT INK CO LTD·Filed 1982·Granted Dec 20, 1983·171 cites·4 claims
- 0397US4425161AThermochromic materialsSHIBAHASHI YUTAKA·Filed 1981·Granted Jan 10, 1984·199 cites·6 claims
- 0495US4732810AReversible temperature-indicating compositionPILOT INK CO LTD·Filed 1985·Granted Mar 22, 1988·76 cites·4 claims
- 0594US5558700AReversible thermochromic compositionPILOT INK CO LTD·Filed 1994·Granted Sep 24, 1996·88 cites·20 claims
- 0694US4920991AThermochromic artificial nailPILOT INK CO LTD·Filed 1988·Granted May 1, 1990·78 cites·10 claims
- 0794US4681791AThermochromic textile materialPILOT INK CO LTD·Filed 1986·Granted Jul 21, 1987·181 cites·10 claims
- 0891US5688592AThermochromic laminate comprising light intercepting pigment and light stabilizerPILOT INK CO LTD·Filed 1995·Granted Nov 18, 1997·62 cites·9 claims
- 0991US4554565AMethod of producing reversible thermochromic displayPILOT INK CO LTD·Filed 1984·Granted Nov 19, 1985·71 cites·3 claims
- 1089US6444313B1Thermochromic acrylic synthetic fiber, its processed article, and process for producing thermochromic acrylic synthetic fiberPILOT INK CO LTD·Filed 2001·Granted Sep 3, 2002·37 cites·8 claims
- 1189US5558699AThermochromic color-memory compositionPILOT INK CO LTD·Filed 1994·Granted Sep 24, 1996·56 cites·3 claims
- 1289US5085607AToy that stably exhibits different colors with indicator for proper temperature applicationPILOT INK CO LTD·Filed 1990·Granted Feb 4, 1992·59 cites·32 claims
- 1388US5011445AColor memory toy setPILOT INK CO LTD·Filed 1990·Granted Apr 30, 1991·58 cites·6 claims
- 1483US5352649AThermochromic laminate member, and composition and sheet for producing the samePILOT INK CO LTD·Filed 1992·Granted Oct 4, 1994·48 cites·20 claims
- 1582US4865648AReversible heat sensitive recording compositionKITO TSUTOMU·Filed 1987·Granted Sep 12, 1989·33 cites·2 claims
- 1678US5879438AMethod for improving light-fastness of reversible thermochromic compositions at the time of color extinguishmentPILOT INK CO LTD·Filed 1997·Granted Mar 9, 1999·28 cites·20 claims
- 1776US6048387AReversible thermochromic compositionPILOT INK CO LTD·Filed 1998·Granted Apr 11, 2000·41 cites·5 claims
- 1875US7575386B2Color-memorizing photochromic writing instrument, color-memorizing photochromic writing instrument set using the same and method for alternately expressing color-memorizing photochromic function of writing imagePILOT INK CO LTD·Filed 2005·Granted Aug 18, 2009·5 cites·15 claims
- 1969US9937434B2Photochromic toyYASUDA MICHIYUKI·Filed 2012·Granted Apr 10, 2018·3 cites·11 claims
- 2063US8444450B2Method for alternately expressing color-memorizing photochromic function in toy element, and an alternately color-memorizing photochromic toySHIBAHASHI YUTAKA·Filed 2003·Granted May 21, 2013·10 cites·15 claims
- 2160US5079049AArtificial plant that stably exhibits different colorsPILOT INK CO LTD·Filed 1990·Granted Jan 7, 1992·20 cites·21 claims
- 2259US5873932AMethod for improving light-fastness of reversible thermochromic compositions at the time of color developmentPILOT INK CO LTD·Filed 1996·Granted Feb 23, 1999·16 cites·9 claims
- 2347US5858914AThermochromic coloring color-memory footwearPILOT INK CO LTD·Filed 1996·Granted Jan 12, 1999·26 cites·6 claims
- 2445US9005857B2Thermochromic color-memorization toner, cartridge including same housed therein, image formation apparatus, cartridge set, and image formation apparatus setFUJITA KATSUYUKI·Filed 2009·Granted Apr 14, 2015·0 cites·12 claims
- 2544US6713431B2Metallic luster tone thermochromic laminate memberPILOT INK CO LTD·Filed 2002·Granted Mar 30, 2004·0 cites·6 claims
- 2643US2007082977A1Ink composition for color-memorizing photochromic writing instrument and writing instrument using the sameMASAHIRO IRIE·Filed 2005·Application pending·0 cites
- 2729US2003087580A1Color memory toyFiled 1994·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Yutaka Shibahashi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →