Yoshinaga Katayama

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Kawasaki-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic device, mathematical expression display control method,...
- Patent number 9,910,820
- Issue date Mar 6, 2018
- Casio Computer Co., Ltd.
- Akiko Muraki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic device, mathematical expression display control method,...
- Patent number 9,697,169
- Issue date Jul 4, 2017
- Casio Computer Co., Ltd.
- Akiko Muraki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic calculator with a formula display function
- Patent number 8,214,413
- Issue date Jul 3, 2012
- Casio Computer Co., Ltd.
- Yoshinaga Katayama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Fraction display apparatus
- Patent number 7,827,221
- Issue date Nov 2, 2010
- Casio Computer Co., Ltd.
- Yoshinaga Katayama
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
ELECTRONIC DEVICE, MATHEMATICAL EXPRESSION DISPLAY CONTROL METHOD,...
- Publication number 20170286361
- Publication date Oct 5, 2017
- CASIO COMPUTER CO., LTD.
- Akiko MURAKI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC DEVICE, MATHEMATICAL EXPRESSION DISPLAY CONTROL METHOD,...
- Publication number 20150269115
- Publication date Sep 24, 2015
- CASIO COMPUTER CO., LTD.
- Akiko MURAKI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC CALCULATOR WITH A FORMULA DISPLAY FUNCTION
- Publication number 20090210466
- Publication date Aug 20, 2009
- CASIO COMPUTER CO., LTD.
- Yoshinaga Katayama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Fraction display apparatus
- Publication number 20070150863
- Publication date Jun 28, 2007
- CASIO COMPUTER CO., LTD.
- Yoshinaga Katayama
- G06 - COMPUTING CALCULATING COUNTING