Inventor

FUJITA TOSHIYUKI

JP55 patents

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

FUJITA TOSHIYUKI

HITACHI CHEMICAL CO LTD

Process for producing methacrylic acid esters

Optical resin material

Lens and optical disc base plate obtained from copolymer of norbornyl (meth)acrylate

Dicyclohexyl-3,4,3&#39;,4&#39;-tetracarboxylic acid or dianhydride thereof and polyamide-acid and polyimide obtained therefrom

Electrophoto toner comprising imido group monomer unit in polymer

Para- or meta-terphenyltetracarboxylic acid, dianhydride thereof and process for preparing the same

Process for producing 1,3-bis(dicarboxyphenyl)-disiloxane derivative or dianhydride thereof

KONICA MINOLTA INC

Developing sleeve and electrophotographic image forming apparatus

Organic photoreceptor

Electrophotographic photoreceptor

Electrophotographic photoreceptor, image forming apparatus, image forming method, and method of producing electrophotographic photoreceptor

Electrophotographic photoreceptor, electrophotographic image forming method and electrophotographic image forming apparatus

Electrophotographic photoreceptor, image forming apparatus, image forming method, production method of electrophotographic photoreceptor

Imaging apparatus and process of forming image with electrophotographic photoreceptor having protective layer containing particulate P-type semiconductor

FUJITA TOSHIYUKI

Lighting device

Fuel cell stack and fuel cell system

Electrophotographic photoreceptor

Organic photoreceptor, image forming apparatus and process cartridge

Organic photoreceptor, image forming apparatus and process cartridge

Organic photoreceptor and preparation method thereof

ROHM CO LTD

Lighting device

Method of making thermal printhead

Lighting device

Lighting device

Lighting device

Thermal printhead, heating resistor used for the same, and process of making heating resistor

SHARP KK

Switched-capacitor-type stabilized power circuit

Stabilized power unit

Reflection sheet light source device and display device

Light source device and display device

TAKEUCHI HIDETO

Light source device and display device

Light reflection sheet, light source device, and display device

Light source device and display device

Light source device, illuminating device, backlight device, liquid crystal display device and display device

PANASONIC CORP

Semiconductor light-emitting device, method for forming recesses of the same, and light source apparatus using the same

Nitride semiconductor light emitting chip, and nitride semiconductor light emitting device

Nitride semiconductor light-emitting diode

Method for forming a groove on a surface of flat plate formed of a nitride semiconductor crystal

KURACHI MASAHIKO

Organic photoreceptor and manufacturing method thereof

Organic photoreceptor, image forming apparatus, process cartridge, and color image forming apparatus

Electrophotographic photoreceptor, image forming apparatus, and process cartridge

KONICA MINOLTA BUSINESS TECH

Electrophotographic photoreceptor, image forming apparatus, and method for image formation

Electrophotographic toner, and image forming method and image forming apparatus employing the same

HITACHI LTD

Method for production of methacrylate ester

ISHIDA TAKESHI

Organic photoreceptor, manufacturing method of organic photoreceptor, and image forming apparatus

MATSUI RYOJI

Contactless electricity-supplying device

MURAOKA MASASHI

Fuel cell stack and electronic device provided with the same

MAEDA SEISUKE

Organic photoreceptor, image forming apparatus, and process cartridge

HAYATA HIROFUMI

Image forming method and image forming apparatus

OSADA MORIO

Electrophotographic photoreceptor

Dicyclohexyl-3,4,3',4'-tetracarboxylic acid or dianhydride thereof and polyamide-acid and polyimide obtained therefrom