Masumi Atsukawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Locking-unlocking mechanism for telescopic device
- Patent number 5,660,495
- Issue date Aug 26, 1997
- Japan Skyrobot Co., Ltd.
- Masumi Atsukawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Movement mechanism of telescopic column
- Patent number 5,279,084
- Issue date Jan 18, 1994
- Japan Skyrobot Co., Ltd.
- Masumi Atsukawa
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Extension support unit
- Patent number 5,056,278
- Issue date Oct 15, 1991
- K & M Enterprise Co., Ltd.
- Masumi Atsukawa
- E04 - BUILDING