Hidejirou Maehara

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Printer with detachably mountable ink ribbon cassette
- Patent number 4,683,478
- Issue date Jul 28, 1987
- Ricoh Company, Ltd.
- Masayuki Suzaki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink ribbon cartridge and color ink ribbon for printer
- Patent number 4,669,899
- Issue date Jun 2, 1987
- Ricoh Company, Ltd.
- Masanori Kawakami
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS