Fukuma; Masumi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Fukuma; Masumi.The latest application filed is for "evaluation method for insulation performance of insulator".

Company Profile

0.8.1

Fukuma; Masumi - Matsue JP
FUKUMA; Masumi - Matsue-shi Shimane
Fukuma; Masumi - Kanagawa JP
Fukuma; Masumi - Yokohama JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Evaluation method for insulation performance of insulator Grant 10,677,835 - Sekiguchi , et al.	2020-06-09
Evaluation Method For Insulation Performance Of Insulator App 20190120893 - SEKIGUCHI; Yoitsu ; et al.	2019-04-25
Reflection monitor optical fiber coupler manufacturing system and method Grant 5,329,600 - Sasaoka , et al. July 12, 1	1994-07-12
Method and apparatus for producing optical fiber coupler Grant 5,205,851 - Suganuma , et al. April 27, 1	1993-04-27
Method for manufacturing a fiber type coupler Grant 5,167,685 - Fukuma , et al. December 1, 1	1992-12-01
Method of manufacturing optical branching and coupling device Grant 5,098,459 - Fukuma , et al. March 24, 1	1992-03-24
Optical transmission line for use in an optical communication system Grant 5,077,814 - Shigematsu , et al. December 31, 1	1991-12-31
Method for manufacturing a fiber type coupler Grant 5,046,804 - Fukuma , et al. September 10, 1	1991-09-10
Optical fiber cable preventing water from spreading toward cable interior Grant 4,802,732 - Fukuma , et al. February 7, 1	1989-02-07

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