Minoru Shirakawa

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Akita-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Handling device and handling method of quartz glass crucible
- Patent number 8,585,346
- Issue date Nov 19, 2013
- Japan Super Quartz Corporation
- Manabu Shonai
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Carbon electrode grinding apparatus
- Patent number 8,449,352
- Issue date May 28, 2013
- Japan Super Quartz Corporation
- Masanori Fukui
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Crane device for wrapped quartz glass crucible and method of packin...
- Publication number 20110099952
- Publication date May 5, 2011
- JAPAN SUPER QUARTZ CORPORATION
- Manabu Shonai
- C30 - CRYSTAL GROWTH
Information Patent Application
Handling device and handling method of quartz glass crucible
- Publication number 20110020103
- Publication date Jan 27, 2011
- JAPAN SUPER QUARTZ CORPORATION
- Manabu Shonai
- C30 - CRYSTAL GROWTH
Information Patent Application
CARBON ELECTRODE GRINDING APPARATUS
- Publication number 20100178855
- Publication date Jul 15, 2010
- JAPAN SUPER QUARTZ CORPORATION
- Masanori FUKUI
- B24 - GRINDING POLISHING