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Gas recovery unit
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Patent number 5,958,138
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Issue date Sep 28, 1999
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Teisan Kabushiki Kaisha
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Shinji Tomita
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Gas filling method and facility
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Patent number 5,937,918
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Issue date Aug 17, 1999
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Teisan K.K.
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Mitsuhide Takeharada
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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Exhaust gas treatment unit
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Patent number 5,891,404
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Issue date Apr 6, 1999
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Teisan Kabushiki Kaisha
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Yoshihiro Ibaraki
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Exhaust gas treatment unit and method
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Patent number 5,800,792
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Issue date Sep 1, 1998
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Teisan Kabushiki Kaisha
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Yoshihiro Ibaraki
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Argon purification process
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Patent number 5,783,162
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Issue date Jul 21, 1998
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Teisan Kabushiki Kaisha
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Shinji Tomita
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C30 - CRYSTAL GROWTH
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High purity nitrogen gas generator
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Patent number 5,638,699
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Issue date Jun 17, 1997
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Teisan Kabushiki Kaisha
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Takao Yamamoto
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Evaporated gas supply method
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Patent number 5,546,753
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Issue date Aug 20, 1996
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Teisan K.K.
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Kazuo Yokogi
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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Exhaust gas treatment apparatus
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Patent number 5,238,658
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Issue date Aug 24, 1993
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Teisan Kabushiki Kaisha
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Takayuki Makioka
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL