Inventor

ITAYA KENJI

JP43 patents

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

ITAYA KENJI

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Low-pressure mercury vapor discharge lamp with improved heat dissipation, and manufacturing method therefore

Electrodeless discharge lamp

Electrodeless discharge lamp

Fluorescent lamp

Self-ballasted electrodeless discharge lamp and electrodeless discharge lamp

Fluorescent lamp

Fluorescent lamp

Fluorescent lamp

Arc tube with shortened total length, manufacturing method for arc tube, and low-pressure mercury lamp

Fluorescent lamp having excellent light distribution and high impact-resistance

Fluorescent lamp

Fluorescent lamp

Low-pressure mercury lamp having a spiral arc tube and method for assembling the same

Easily-assembled compact self-ballasted fluorescent lamp

Fluorescent lamp

Fluorescent lamp with improved productivity, and manufacturing method for the fluorescent lamp

Fluorescent lamp having V-shaped grooves for guiding lead wire

Annulus fluorescent lamp

Arc tube with shortened total length, manufacturing method for arc tube, and low-pressure mercury lamp

Arc tube manufacturing method that reduces unevenness in thickness of a phosphor layer on an inner surface of a bent glass tube

Arc tube with shortened total length, manufacturing method for arc tube, and low-pressure mercury lamp

Part of fluorescent lamp

Bulb-shaped fluorescent lamp

Compact self-ballasted fluorescent lamp resistant to heat deformation

Fluorescent lamp

Fluorescent lamp

Low-pressure mercury vapor discharge lamp with improved heat dissipation, and manufacturing method therefore

Low pressure mercury vapor discharge lamp

Part of fluorescent lamp

Base for fluorescent lamp

Fluorescent lamp

Bulb-shaped fluorescent lamp

Arc tube and low-pressure mercury lamp that can be reduced in size

Bulb type electrodeless fluorescent lamp

MATSUSHITA ELECTRONICS CORP

Low pressure mercury vapor discharge lamp with heat conductive component

Lamp having improved electrical connection

Annulus fluorescent lamp with overheat protection

Light-bulb-shaped fluorescent lamp

OSAKA SODA CO LTD

Method of purifying the raw brine used in alkali salt electrolysis

Method of purifying the raw brine used in alkali salt electrolysis

MATUSHITA ELECTRIC IND CO LTD

Fluorescent lamp with thermal protection element manufacturing method for the fluorescent lamp and a lighting apparatus using the same

MATSUSHITA ELECTRONICS CORP AND MATSUSHITA ELECTRIC WORKS LTD

Base for fluorescent lamp

PANASONIC CORP

Process for producing double helical glass tube, light-emitting tube for fluorescent lamp, and fluorescent lamp