Takehiro Sakamoto

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Sagamihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical glass for precision press molding and optical element
- Patent number 6,713,419
- Issue date Mar 30, 2004
- Kabushiki Kaisha Ohara
- Masahiro Onozawa
- C03 - GLASS MINERAL OR SLAG WOOL