Inventor

TSUNETOMO KEIJI

JP53 patents

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

TSUNETOMO KEIJI

NIPPON SHEET GLASS CO LTD

Laser processing method to a class substrate and an optical diffraction element obtained thereby, and a method for manufacturing optical elements

Laser processing method to a glass substrate and an optical diffraction element obtained thereby, and a method for manufacturing optical elements

Method for stabilizing output of rain sensor and protection method therefor

Laser machining method for glass substrate, diffraction type optical device fabricated by the machining method, and method of manufacturing optical device

Liquid drop detection method and apparatus therefor

Laser-processable glass substrate and laser processing method

Laser processing method to a micro lens

Method for manufacturing a diffraction type optical element

Optical element, optical circuit provided with the optical element, and method for producing the optical element

Photonic crystal waveguide, homogeneous medium waveguide, and optical device

Glass structure and method for producing the same

Method of changing the surface of a glass substrate containing silver, by using a laser beam

Glass substrate having fine holes

Water drop detector on transparent substrate

Transparent substrate having rain sensor

Transmissive diffraction grating, and spectral separation element and spectroscope using the same

Gradient-index lens, and method for producing the same

Method of manufacturing article having uneven surface

Diffraction device using photonic crystal

Method of changing the surface of a glass substrate containing silver, by using a laser beam

Water drop detector on transparent substrate and initiating method and output stabilizing method therefor

Wiper controller apparatus of water drop sensitive type

Multilayer, cushioned liquid drop detector

Water drop detector or transparent substrate and initiating method and output stabilizing method therefor

Laser processing method to an optical waveguide

Wiper control apparatus

Waveguide element, method for producing the waveguide element, and optical sensor

Optical element

Optical waveguide device

Method for producing aspherical structure, and aspherical lens array molding tool and aspherical lens array produced by the same method

Illumination device

Radiation angle changing element and light emitting device

Substrate with glass sheet, resin layer and through-glass via

Image sensor unit and image reading device

Method for producing glass substrate with through glass vias and glass substrate

Method for producing glass substrate with through glass vias and glass substrate

Glass for laser processing

Waveguide element using photonic crystal

Glass for laser processing

Optical element using one-dimensional photonic crystal and spectroscopic device using the same

Multilayer structure and method for manufacturing the same

Optical component and method of manufacturing optical component

Method for producing glass substrate and glass sheet

Optical element and wavelength separator using the same

NILES CO LTD

Deposit detector and controller using the detector

Deposit detector and control device using it

Adhering substance detector and controller using the same

NAT INST OF ADVANCED IND SCIEN

Spectrometer using diffraction grating

HIDAKA TAKESHI

Glass substrate processing method and glass component

OLYMPUS CORP

Processing method for glass substrate, processed glass product and stress applying apparatus