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Hiroyuki SAKAKURA
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Osaka-shi, Osaka, JP
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Patents Grants
last 30 patents
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Patent Grant
Mechanical seal
Patent number
10,876,633
Issue date
Dec 29, 2020
Nippon Pillar Co., Ltd.
Hiroyuki Sakakura
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Mechanical seal
Patent number
10,823,291
Issue date
Nov 3, 2020
Nippon Pillar Packing Co., Ltd.
Hiroyuki Sakakura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
MECHANICAL SEAL
Publication number
20190154156
Publication date
May 23, 2019
Nippon Pillar Packing Co., Ltd.
Hiroyuki SAKAKURA
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
MECHANICAL SEAL
Publication number
20180363782
Publication date
Dec 20, 2018
NIPPON PILLAR PACKING CO., LTD.
Hiroyuki SAKAKURA
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
END SURFACE-CONTACT MECHANICAL SEAL
Publication number
20170370475
Publication date
Dec 28, 2017
Nippon Pillar Packing Co., Ltd.
Hiroyuki SAKAKURA
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
MULTI-CHANNEL ROTARY JOINT
Publication number
20170051857
Publication date
Feb 23, 2017
Nippon Pillar Packing Co., Ltd.
Hiroyuki SAKAKURA
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...