Keiji SAKAI

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Hyogo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Crane
- Patent number 12,195,310
- Issue date Jan 14, 2025
- Kobelco Construction Machinery Co., Ltd.
- Takuya Watanabe
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Hoisting implement, hoisting implement system, and method for using...
- Patent number 11,981,542
- Issue date May 14, 2024
- Kobelco Construction Machinery Co., Ltd.
- Keiji Sakai
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Cabin support deck
- Patent number 10,053,159
- Issue date Aug 21, 2018
- Kobelco Construction Machinery Co., Ltd.
- Keiji Sakai
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
CRANE
- Publication number 20220250880
- Publication date Aug 11, 2022
- KOBELCO CONSTRUCTION MACHINERY CO., LTD.
- Takuya WATANABE
- B66 - HOISTING LIFTING HAULING
Information Patent Application
HOISTING IMPLEMENT, HOISTING IMPLEMENT SYSTEM, AND METHOD FOR USING...
- Publication number 20220073318
- Publication date Mar 10, 2022
- KOBELCO CONSTRUCTION MACHINERY CO., LTD.
- Keiji SAKAI
- B66 - HOISTING LIFTING HAULING
Information Patent Application
CABIN SUPPORT DECK
- Publication number 20170240218
- Publication date Aug 24, 2017
- KOBELCO CONSTRUCTION MACHINERY CO., LTD.
- Keiji SAKAI
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS