Takeshi Hazeyama

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Patents Grantslast 30 patents

Information Patent Grant
Heat-resistant filter element and method for production thereof
- Patent number 7,399,522
- Issue date Jul 15, 2008
- Nittetsu Mining Co., Ltd.
- Koji Nakanishi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Filter having chemical resistance, antistatic property and water va...
- Patent number 5,607,490
- Issue date Mar 4, 1997
- Nittetsu Mining Co., Ltd.
- Seihou Taniguchi
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Grant
Reinforced filter element
- Patent number 5,558,689
- Issue date Sep 24, 1996
- Nittetsu Mining Co., Ltd.
- Hiroyuki Yanagihara
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Manufacturing method of filter element for dust collector
- Patent number 5,080,847
- Issue date Jan 14, 1992
- Nittetsu Mining Co., Ltd.
- Takeshi Hazeyama
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Apparatus for classifying particulate material with air currents
- Patent number 4,551,240
- Issue date Nov 5, 1985
- Nittetsu Mining Co., Ltd.
- Masaru Beppu
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING

Patents Applicationslast 30 patents

Information Patent Application
Heat-resistant filter element and method for production thereof
- Publication number 20060088708
- Publication date Apr 27, 2006
- Koji Nakanishi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL