Penta-Ocean Construction Co., Ltd.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rectangular shield excavating machine
- Patent number 5,190,407
- Issue date Mar 2, 1993
- Kabushiki Kaisha Iseki Kaihatsu Koki
- Toshio Akesaka
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mooring apparatus
- Patent number 5,150,744
- Issue date Sep 29, 1992
- Sumitomo Rubber Industries, Ltd.
- Nobuharu Hayashi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method for improving soft ground by sand drain method and cylindric...
- Patent number 4,451,175
- Issue date May 29, 1984
- Teijin Limited
- Hiromichi Yamashita
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
RC building seismic reinforcement method utilizing steel portal fra...
- Publication number 20040250484
- Publication date Dec 16, 2004
- Forest Engineering & Economics Co., Ltd.
- Katsuhiko Imai
- E04 - BUILDING

Trademarklast 30 trademarks

Information Trademark
74369021 - PENTA-OCEAN CONSTRUCTION CO., LTD.
- Serial number 74369021
- Registration number 1899451
- Filing date Mar 18, 1993
- PENTA-OCEAN CONSTRUCTION CO., LTD.
- 37 - Building construction