Inventor

HAGIWARA KIYOKAZU

JP4 patents

Patents

4 patents

US6335763B1Jan 1, 2002

Television receiver and additional information transmitting method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations92

US4913525AApr 3, 1990

Frequency stabilized light source

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations91

US5007709AApr 16, 1991

Diffraction grating and manufacturing method thereof

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations90

US6577347B2Jun 10, 2003

Television receiver and additional information transmitting method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62