Inventor · disambiguated record

Hideo Kakegawa

Also filed as: KAKEGAWA HIDEO

2 granted patents·23 citations·filing 1977–1979

60Inventor score

Technology areasE01B

Files withJAPAN NATIONAL RAILWAY2

Top patents by PatentIndex Score

2 records

0148US4156440ARailroad track bed using injection materials and method thereforJAPAN NATIONAL RAILWAY·Filed 1977·Granted May 29, 1979·13 cites·7 claims
0243US4267085AInjection materials for railroad track bedsJAPAN NATIONAL RAILWAY·Filed 1979·Granted May 12, 1981·10 cites·4 claims

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Hideo Kakegawa — Patent Inventor | PatentIndex