Kiyoharu Kawashima

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Suita-shi, Osaka-fu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Writing board system
- Patent number 5,649,828
- Issue date Jul 22, 1997
- Kiyoharu Kawashima
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Writing instrument
- Patent number 5,417,748
- Issue date May 23, 1995
- Kiyoharu Kawashima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Printed matter
- Patent number 5,415,434
- Issue date May 16, 1995
- Kiyoharu Kawashima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Color changing print
- Patent number 5,215,956
- Issue date Jun 1, 1993
- Kiyoharu Kawashima
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Printed matter
- Patent number 5,196,243
- Issue date Mar 23, 1993
- Kiyoharu Kawashima
- B44 - DECORATIVE ARTS
Information Patent Grant
Reusable hidden indicia printed sheet
- Patent number 5,139,572
- Issue date Aug 18, 1992
- Kiyoharu Kawashima
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Coaster for glass
- Patent number 5,000,413
- Issue date Mar 19, 1991
- Kiyoharu Kawashima
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Representing utensil
- Patent number 4,907,903
- Issue date Mar 13, 1990
- Kiyoharu Kawashima
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS