Inventor

HATA KENJIRO

JP18 patents

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

HATA KENJIRO

TDK CORP

Optical isolator, optical isolator with fiber and method for making the same

Composite optical element, optical isolator, optical circulator, optical switch and processes for producing them

Optical fiber terminal fitted with optical isolator and method of assembling the same

Waveguide-embedded optical circuit and optical functional element used therein

Optical fiber terminal with optical isolator and semiconductor laser module using the same

Embedded type optical isolator and method for manufacturing the same

Optical fiber terminal pitted with optical isolator

Composite optical element, optical isolator, optical circulator, optical switch and process for producing them

Optical transceiver and optical module used in the same

Embedded type optically irreversible circuit

Optical component and method of manufacturing the same

Optical multiplexer/demultiplexer and method of manufacturing the same

Optical module for bi-directional communication system

Optical module for bi-directional communication system

HATA KENJIRO

Thin-film piezoelectric device, production method thereof, head gimbals assembly using the thin-film piezoelectric device, and hard disk using the head gimbals assembly

Method for manufacturing head gimbal assembly, and method for manufacturing hard disk drive

Piezoelectric actuator and method of manufacturing the same

SAE MAGNETICS HK LTD

Thin film piezoelectric element and manufacturing method thereof, micro-actuator, head gimbal assembly and disk drive unit with the same