Inventor

YAMANAKA FUSAO

JP24 patents

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

YAMANAKA FUSAO

FUJI PHOTO FILM CO LTD

Laser multiplexing apparatus

Semiconductor laser element having end-facet protection layer which includes unoxidized or unnitrided first sublayer formed on end facet and second sublayer produced by oxidizing or nitriding the surface of the first sublayer

Semiconductor laser device having controlled oxygen concentration at boundary between semiconductor layers and reflectance control layer formed on end facet

Method for preparing a magnetic recording medium and a magnetic disk using the same

Perpendicular magnetic recording medium and the method for preparing the same

Method for preparing a magnetic recording medium

Method of manufacturing vertical magnetization type recording medium

Vertical magnetization type recording medium and manufacturing method therefor

Laser module and production process thereof

Semiconductor laser device containing controlled interface oxygen at both end facets

Semiconductor laser element having resonator surface coated with oxygen gettering layer and high thermal conductivity layer

Magnetic recording medium containing an ester lubricant branched from the number 2 carbon position of the acid residue

Method for producing magnetic recording medium

Apparatus for producing magnetic recording medium

Vertical magnetization type recording medium and manufacturing method therefor

Laser element, method of producing the laser element, and a laser module employing the laser element

Laser apparatus having protection member at light-emission end of multimode optical fiber

Semiconductor laser device with a current non-injection region near a resonator end face, and fabrication method thereof

Semiconductor laser device in which end of electric-to-optical conversion layer protrudes outward from shortest current path between end facets of cladding layers

FUJIFILM CORP

Apparatus for synthesizing laser beams

Laser device and exposure device using the same

Laser module

Laser module

Laser module and method of manufacture thereof