1
Tasaki Masutsugu, Ichikawa Akira, Odaki Tsutomu, Takagi Kazuhisa: Transparent coating member for light-emitting diodes and fluorescent color light source. Asahi Rubber, January 13, 1999: EP0890996-A2 (30 worldwide citation)

A transparent coating is provided on a surface of a light-emitting diode. The coating includes a fluorescent substance. The wavelength of an emitted light peculiar to the light-emitting diode is changed by the fluorescent substance contained in the coating to change the luminescent color. The fluore ...


2
Tazaki Masuji, Odaki Tsutomu, Takagi Kazuhisa: Light emitting device. Asahi Rubber, July 28, 2000: JP2000-208818 (10 worldwide citation)

PROBLEM TO BE SOLVED: To recycle phosphor and eliminate the deterioration due to ultraviolet ray by diffusing one kind of phosphor in a material stable to ultraviolet ray so as to make a fluorescent member as a molded body. SOLUTION: A light emitting diode chip 11 emitting an ultraviolet ray is plac ...


3
Yokoyama Rinkichi, Takagi Kazuhisa, Odaki Tsutomu, Utsuki Mitsuharu, Tazaki Masuji, Ichikawa Akira: Method for supporting production of phosphor-covered body, production support system thereof, and phosphor- covered body for luminescent element. Asahi Rubber, April 17, 2001: JP2001-107036 (9 worldwide citation)

PROBLEM TO BE SOLVED: To enable a filter containing a phosphor material having a homogeneous color tone required by customers to be rapidly and easily produced. SOLUTION: CPU 2 is equipped with operation means 21 and retrieval means 22. Operation means 21 calculates factors a to d relating to a phos ...


4
Odaki Tsutomu: Red light-emitting phosphor and light-emitting device. Fine Rubber Kenkyusho, December 24, 2004: JP2004-359842 (6 worldwide citation)

PROBLEM TO BE SOLVED: To provide a red light-emitting phosphor exhibiting high emission intensity at a wavelength of 400 to 410 nm and to provide a light-emitting device using the same.SOLUTION: The red light-emitting phosphor is represented by the compositional formula: LiyA(1-y)EuxSm(1-x)W2O8 (1) ...


5
Hashimoto Kazuaki, Tazaki Masuji, Ichikawa Akira, Takagi Kazuhisa, Odaki Tsutomu: Light emitting diode. Asahi Rubber, September 28, 2001: JP2001-267632 (5 worldwide citation)

PROBLEM TO BE SOLVED: To provide an LED which is non toxic and superior in color rendering properties without increasing the cost beyond necessity and a coating usable for such LED.SOLUTION: The light emitting diode has a blue-green light emitting element and a fluorescent material for converting th ...


6

7
Odaki Tsutomu: Phosphor for light-emitting diode and light-emitting device. Fine Rubber Kenkyusho, April 9, 2003: JP2003-105336 (4 worldwide citation)

PROBLEM TO BE SOLVED: To provide a YAG: Ce3+-based fluorescent substance which can efficiently emit light with the excitation light of a gallium nitride-based light- emitting diode and can practically be used for taking out white light to arbitrary color light from one light-emitting diode, and to p ...


8
Tazaki Masuji, Odaki Tsutomu, Takagi Kazuhisa: Light emitting diode and display employing it. Asahi Rubber, January 7, 2000: JP2000-004051 (3 worldwide citation)

PROBLEM TO BE SOLVED: To produce a clear image while suppressing fatigue of eyes by setting the half width of polarization curve of a light emitting diode equal to specified times that of the polarization curve of a single light emitting diode having no coating layer thereby exhibiting a broad polar ...


9
Odaki Tsutomu: Method of manufacturing semiconductor light emitting device. Fine Rubber Kenkyusho, March 3, 2005: JP2005-056885 (3 worldwide citation)

PROBLEM TO BE SOLVED: To provide a method of manufacturing a semiconductor light emitting device which produces little color irregularities and is kept high in color tone stability with time, which is capable of manufacturing it with high reproducibility of color tone at a low cost.SOLUTION: A wirin ...


10
Odaki Tsutomu, Tsuchiya Soji: Red color-emitting phosphor and light-emitting device using the same. Fine Rubber Kenkyusho, February 13, 2003: JP2003-041252 (3 worldwide citation)

PROBLEM TO BE SOLVED: To provide a red color-emitting phosphor which efficiently radiates a red emission by a long wavelength ultraviolet ray or a short wavelength visible ray (from 350 nm to 420 nm), particularly by an exciting light having a wavelength of around 370 nm, and is practically employab ...