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Shigeo Nakajima

USPTO Granted Patents = 6

Average Co-Inventor Count = 3.4

ph-index = 4

Forward Citations = 31(Granted Patents)

Location History:

Tokyo, JA (1977 - 1978)
Tokyo, JP (1978 - 1980)

Company Filing History:

Taiheiyo Engineering Corporation

Taiiheiyo Engineering Incorporated

Years Active: 1977-1980

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4189257 - Sheltering apparatus for use in long wall mining (1980-02-19),

2. 4127303 - Coal mining method at a long-walled pit face of the coal mine (1978-11-28),

3. 4099786 - Apparatus for drawing the shearers (1978-07-11),

4. 4067618 - Apparatus for protecting of coal mine workers (1978-01-10),

5. 4027918 - Longwall coal mining machine with plural cutters on sub-ranging arm (1977-06-07),

6. 4002037 - Self-advancing support for use in the pit of coal or metal mine (1977-01-11),

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