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Yokohama, Japan

Yasuo Kokubun

USPTO Granted Patents = 6 (Patent Applications = 1)

EPO Patents = 2 (Patent Applications = 4)

Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 198(Granted Patents)

Location History:

Kanagawa, JP (2014)
Yokohama, JP (1987 - 2016)

Company Filing History:

Yokohama National University

Hokkaido University

Massachusetts Institute of Technology

4. 1 out of 386

American Telephone and Telegraph, Co.

Nat'l University Corp. Yokohama Nat'l University

where one patent can have more than one assignee

Years Active: 1987-2016

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9335467 - Multi-core fiber and method of positioning of core of multi-core fiber (2016-05-10),

2. 8811786 - Coupled system multi-core fiber, coupling mode multiplexer and demultiplexer, system for transmission using multi-core fiber and method for transmission using multi-core fiber (2014-08-19),

3. 8761562 - Multicore fiber and core placement method for multicore fiber (2014-06-24),

4. 8503847 - Method of arranging cores of multi-core fiber (2013-08-06),

5. 6411752 - Vertically coupled optical resonator devices over a cross-grid waveguide architecture (2002-06-25),

6. 4715672 - Optical waveguide utilizing an antiresonant layered structure (1987-12-29),

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