Inventor

TAKEI RYOHEI

JP4 patents

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

NAT INST ADVANCED IND SCIENCE & TECH

2 patents

US9435946B2Sep 6, 2016

Interlayer light wave coupling device

NAT INST ADVANCED IND SCIENCE & TECH9 citations81

US9690122B2Jun 27, 2017

Optical semiconductor device

NAT INST ADVANCED IND SCIENCE & TECH4 citations71

AIST

1 patent

US9829726B2Nov 28, 2017

Electro-optical modulator

AIST3 citations71

NAT INST OF ADVANCED IND SCIEN

1 patent

US8965157B2Feb 24, 2015

Semiconductor pointed structure and method for fabricating same, spot size converter, and non-reflective terminator

NAT INST OF ADVANCED IND SCIEN1 citations49