Inventor
HADAMA KOICHI
JP9 patents
⚠️ This page may combine multiple inventors who share the name “HADAMA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
7 patentsUS10006831B2Jun 26, 2018
End face observation device
NIPPON TELEGRAPH & TELEPHONE5 citations71
US9588300B2Mar 7, 2017
Optical input/output device
NIPPON TELEGRAPH & TELEPHONE3 citations71
US9467755B2Oct 11, 2016
Optical switch
NIPPON TELEGRAPH & TELEPHONE4 citations71
US11797092B2Oct 24, 2023
Electronic apparatus that generates illusion of diagonal traction
NIPPON TELEGRAPH & TELEPHONE1 citations61
US9723387B2Aug 1, 2017
Optical signal processing device with an array waveguide coupled to a slab waveguide with two arcs
NIPPON TELEGRAPH & TELEPHONE0 citations51
US9967050B2May 8, 2018
Optical signal processing device
NIPPON TELEGRAPH & TELEPHONE0 citations50
US9645321B2May 9, 2017
Optical signal processing device
NIPPON TELEGRAPH & TELEPHONE0 citations38