Inventor

SAKAI KAZUO

JP83 patents

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

SAKAI KAZUO

KOKUSAI DENSHIN DENWA CO LTD

Optical Mach-Zehnder type logic element which performs an XOR operation

Method for manufacturing diffraction grating

Variable-waveguide optical branching filter

Optical waveguide switch

Multi-layered semi-conductor photodetector

Distributed feedback semiconductor laser with monitor

Semiconductor laser

Light emitting heterojunction semiconductor device

Light emitting semiconductor device

Quantum well structure and semiconductor device using the same

Avalanche photo diode with quantum well layer

Distributed feedback semiconductor laser

Semiconductor laser with buffer layer

Avalanche photo diode

Infrared emitting device with dislocation free layer

Wavelength tunable semiconductor laser with narrow band-pass active filter region

Semiconductor optical switch

Method of manufacturing avalanche photo diode

Distributed feedback semiconductor laser

Distributed feedback semiconductor laser

Distributed feedback semiconductor laser

Distributed feedback semiconductor laser

Distributed feedback semiconductor laser

HITACHI LTD

Information display apparatus

Hydrodynamic grooved bearing device

Magnetic tape device and method of controlling magnetic tape device

Magnetic-disc unit with gap between disc and shroud

Magnetic disk apparatus

Magnetic disk apparatus with shroud having opening downstream of moveable arm

Capstanless tape driving method and information recording and reproduction apparatus

Analyzing system for operating condition of electrical apparatus

Disc drive having 3.5 inch form factor housing and 2.5 inch form factor disk media

Magnetic tape library device and method for maintaining magnetic recording and reproducing device and magnetic head

Guide mechanism for positioning tape guides in a magnetic tape loading apparatus

TOSHIBA KK

Coating solution composition for forming glass gel thin film, color glass gel filter, and display device using the same

Ink composition, pattern forming method, and color filter

Electron source device, method of manufacturing the same, and flat display apparatus comprising an electron source device

Pigment dispersion composition, display apparatus, and method of manufacture the apparatus

Pigment dispersion composition, display apparatus, and method of manufacturing the apparatus

Pigment dispersion composition, display apparatus, and method of manufacturing the apparatus

Coating solution composition for forming glass gel thin film, color glass gel filter, and display device using the same

NIPPON OIL CO LTD

Process for the solvent deasphalting of asphaltene-containing hydrocarbons

Process for the solvent deasphalting of asphaltene-containing hydrocarbons

Process for the solvent deasphalting of asphaltene-containing hydrocarbons

NIPPON TELEGRAPH & TELEPHONE

Data collection method and system with shorter control interval

Method and system for data collection using public network and broadcasting

HITACHI GLOBAL STORAGE TECH

Magnetic disk apparatus with shroud and having open space downstream of moveable arms in communication with bypass channel

PENTEL KK

Writing instrument

ORIGIN ELECTRIC

Sputtering apparatus

WATANABE KIYOMI

Reversed-polarity pulse generating circuit for direct current plasma and direct current plasma power supply unit