Inventor

HASAMA TOSHIFUMI

JP3 patents

⚠️ This page may combine multiple inventors who share the name “HASAMA TOSHIFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ISHIKAWA HIROSHI

2 patents

US8503836B2Aug 6, 2013

Wavelength domain optical switch

ISHIKAWA HIROSHI4 citations60

US8229258B2Jul 24, 2012

Optical waveguide-type wavelength domain switch

ISHIKAWA HIROSHI5 citations60

NAT INST OF ADVANCED IND SCIEN

1 patent

US7567736B2Jul 28, 2009

Waveguide type wavelength domain optical switch

NAT INST OF ADVANCED IND SCIEN11 citations82