Assignee
SHIBAHASHI YUTAKA
JP·2 granted patents·209 citations·filing 1981–2003
Top patents by PatentIndex Score
2 records- 0197US4425161AThermochromic materialsSHIBAHASHI YUTAKA·Filed 1981·Granted Jan 10, 1984·199 cites·6 claims
- 0263US8444450B2Method 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
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