Patents by Inventor Akihiro Osaka
Akihiro Osaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11300456Abstract: A thermocouple includes: a temperature measuring portion configured to measure an internal temperature of a reaction tube; a main body portion provided therein with a wire which constitutes the temperature measuring portion; and a cushioning portion attached to the main body portion at least in the vicinity of the temperature measuring portion, wherein the thermocouple is fixed to an outer surface of the reaction tube in a state in which the thermocouple makes contact with the reaction tube through the cushioning portion.Type: GrantFiled: November 15, 2019Date of Patent: April 12, 2022Assignee: KOKUSAI ELECTRIC CORPORATIONInventors: Akihiro Osaka, Hideto Yamaguchi, Tetsuya Kosugi, Tokunobu Akao, Atsushi Umekawa, Motoya Takewaki
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Publication number: 20220082447Abstract: A thermocouple includes: a temperature measuring portion configured to measure an internal temperature of a reaction tube; a main body portion provided therein with a wire which constitutes the temperature measuring portion; and a cushioning portion attached to the main body portion at least in the vicinity of the temperature measuring portion, wherein the thermocouple is fixed to an outer surface of the reaction tube in a state in which the thermocouple makes contact with the reaction tube through the cushioning portion.Type: ApplicationFiled: November 22, 2021Publication date: March 17, 2022Applicant: KOKUSAI ELECTRIC CORPORATIONInventors: Akihiro OSAKA, Hideto YAMAGUCHI, Tetsuya KOSUGI, Tokunobu AKAO, Atsushi UMEKAWA, Motoya TAKEWAKI
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Patent number: 10684174Abstract: A thermocouple includes: a temperature measuring portion configured to measure an internal temperature of a reaction tube; a main body portion provided therein with a wire which constitutes the temperature measuring portion; and a cushioning portion attached to the main body portion at least in the vicinity of the temperature measuring portion, wherein the thermocouple is fixed to an outer surface of the reaction tube in a state in which the thermocouple makes contact with the reaction tube through the cushioning portion.Type: GrantFiled: July 26, 2018Date of Patent: June 16, 2020Assignee: KOKUSAI ELECTRIC CORPORATIONInventors: Akihiro Osaka, Hideto Yamaguchi, Tetsuya Kosugi, Tokunobu Akao, Atsushi Umekawa, Motoya Takewaki
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Publication number: 20200166413Abstract: A thermocouple includes: a temperature measuring portion configured to measure an internal temperature of a reaction tube; a main body portion provided therein with a wire which constitutes the temperature measuring portion; and a cushioning portion attached to the main body portion at least in the vicinity of the temperature measuring portion, wherein the thermocouple is fixed to an outer surface of the reaction tube in a state in which the thermocouple makes contact with the reaction tube through the cushioning portion.Type: ApplicationFiled: November 15, 2019Publication date: May 28, 2020Applicant: KOKUSAI ELECTRIC CORPORATIONInventors: Akihiro OSAKA, Hideto YAMAGUCHI, Tetsuya KOSUGI, Tokunobu AKAO, Atsushi UMEKAWA, Motoya TAKEWAKI
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Patent number: 10228291Abstract: A thermocouple includes: a temperature measuring portion configured to measure an internal temperature of a reaction tube; a main body portion provided therein with a wire which constitutes the temperature measuring portion; and a cushioning portion attached to the main body portion at least in the vicinity of the temperature measuring portion, wherein the thermocouple is fixed to an outer surface of the reaction tube in a state in which the thermocouple makes contact with the reaction tube through the cushioning portion.Type: GrantFiled: February 24, 2016Date of Patent: March 12, 2019Assignee: KOKUSAI ELECTRIC CORPORATIONInventors: Akihiro Osaka, Hideto Yamaguchi, Tetsuya Kosugi, Tokunobu Akao, Atsushi Umekawa, Motoya Takewaki
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Publication number: 20180328790Abstract: A thermocouple includes: a temperature measuring portion configured to measure an internal temperature of a reaction tube; a main body portion provided therein with a wire which constitutes the temperature measuring portion; and a cushioning portion attached to the main body portion at least in the vicinity of the temperature measuring portion, wherein the thermocouple is fixed to an outer surface of the reaction tube in a state in which the thermocouple makes contact with the reaction tube through the cushioning portion.Type: ApplicationFiled: July 26, 2018Publication date: November 15, 2018Applicant: HITACHI KOKUSAI ELECTRIC INC.Inventors: Akihiro OSAKA, Hideto YAMAGUCHI, Tetsuya KOSUGI, Tokunobu AKAO, Atsushi UMEKAWA, Motoya TAKEWAKI
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Patent number: 9509966Abstract: A projector in an illumination optical system includes a laser light source, a synchronization signal processor that converts synchronization signals that are synchronized with video signals input from outside the projector into video signals to be used inside the projector, an LD driver that controls a lighting state of the laser light source according to the synchronization signals output from the synchronization signal processor, an LED (Light Emitting Diode) light source, an LED driver that controls a lighting state of the LED light source according to the synchronization signals output from the synchronization signal processor, a rotational state detector that detects a rotational state of a phosphor wheel, and a phosphor wheel driver that, based on a detected result of the rotational state detector, controls the rotational state of the phosphor wheel.Type: GrantFiled: December 22, 2014Date of Patent: November 29, 2016Assignee: NEC DISPLAY SOLUTIONS, LTD.Inventors: Hiroyuki Saitou, Atsushi Katou, Motoyasu Utsunomiya, Akihiro Osaka, Masateru Matsubara
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Patent number: 9453999Abstract: Phosphor color foil 1 comprises glass substrate 2, rotary motor 3 for rotating glass substrate 2, and phosphor (first phosphor) 5 annularly applied on the surface of glass substrate 2. The center of the applied region of phosphor 5 is different from the rotational center of glass substrate 2. The center of one or both of outer boundary line 5a and inner boundary line 5b of the applied region of phosphor 5 is different from the rotational center of glass substrate 2. Center axis 6 of glass substrate 2 is separated from the rotational center. Another phosphor (second phosphor) 9 is annularly applied adjacently to and inside or outside the applied region of phosphor 5.Type: GrantFiled: June 16, 2011Date of Patent: September 27, 2016Assignee: NEC DISPLAY SOLUTIONS, LTD.Inventor: Akihiro Osaka
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Publication number: 20160245704Abstract: A thermocouple includes: a temperature measuring portion configured to measure an internal temperature of a reaction tube; a main body portion provided therein with a wire which constitutes the temperature measuring portion; and a cushioning portion attached to the main body portion at least in the vicinity of the temperature measuring portion, wherein the thermocouple is fixed to an outer surface of the reaction tube in a state in which the thermocouple makes contact with the reaction tube through the cushioning portion.Type: ApplicationFiled: February 24, 2016Publication date: August 25, 2016Applicant: HITACHI KOKUSAI ELECTRIC INC.Inventors: Akihiro OSAKA, Hideto YAMAGUCHI, Tetsuya KOSUGI, Tokunobu AKAO, Atsushi UMEKAWA, Motoya TAKEWAKI
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Patent number: 9411219Abstract: Provided is an excitation light synthesizing unit capable of emitting, in one direction, excitation light incident from a plurality of difference directions. The excitation light synthesizing unit includes polarization splitter film (15), first and second ¼ wavelength plates (13 and 14), and reflection member (19). Polarization splitter film (15) transmits excitation light that is P-polarized light while reflecting excitation light that is S-polarized light. First and second ¼ wavelength plates (13 and 14) are arranged on the path along which first excitation light (L1), which is directed toward polarization splitter film (15), travels. Reflection member (19) disposed between first and second ¼ wavelength plates (13 and 14). Reflection member (19) reflects second excitation light (L2) incident via polarization splitter film (15) toward polarization splitter film (15). Reflection member (19) includes hole (20) formed to pass first excitation light (L1).Type: GrantFiled: December 27, 2011Date of Patent: August 9, 2016Assignee: NEC DISPLAY SOLUTIONS, LTD.Inventor: Akihiro Osaka
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Publication number: 20150146100Abstract: A projector in an illumination optical system includes a laser light source, a synchronization signal processor that converts synchronization signals that are synchronized with video signals input from outside the projector into video signals to be used inside the projector, an LD driver that controls a lighting state of the laser light source according to the synchronization signals output from the synchronization signal processor, an LED (Light Emitting Diode) light source, an LED driver that controls a lighting state of the LED light source according to the synchronization signals output from the synchronization signal processor, a rotational state detector that detects a rotational state of a phosphor wheel, and a phosphor wheel driver that, based on a detected result of the rotational state detector, controls the rotational state of the phosphor wheel.Type: ApplicationFiled: December 22, 2014Publication date: May 28, 2015Inventors: Hiroyuki Saitou, Atsushi Katou, Motoyasu Utsunomiya, Akihiro Osaka, Masateru Matsubara
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Patent number: 9022580Abstract: This invention realizes an illumination optical system with a small etendue that has a longer lifetime and a high degree of brightness. The invention includes: a laser light source that generates excitation light; a phosphor that generates a fluorescent light by means of the excitation light; a light tunnel that projects the excitation light that is incident at one end towards the phosphor from another end, and projects a fluorescent light generated with the phosphor from the one end; and a dichroic mirror that is provided between the laser light source and the light tunnel, and that allows the fluorescent light or the excitation light to pass through, and reflects the remaining excitation or fluorescent light.Type: GrantFiled: January 29, 2010Date of Patent: May 5, 2015Assignee: NEC Display Solutions, Ltd.Inventors: Hiroyuki Saitou, Atsushi Katou, Motoyasu Utsunomiya, Akihiro Osaka, Masateru Matsubara
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Patent number: 8936368Abstract: This invention realizes an illumination optical system with a small etendue that has a longer lifetime and a high degree of brightness. The invention includes: a laser light source that generates excitation light having a first wavelength; a phosphor wheel including a blue fluorescent light generation region that generates fluorescent light having a second wavelength by means of the excitation light, and a green fluorescent light generation region that generates fluorescent light having a third wavelength by means of the excitation light; an LED light source that generates light having a fourth wavelength; and a dichroic mirror that reflects fluorescent light having the second wavelength and fluorescent light having the third wavelength and allows light having the fourth wavelength to pass therethrough, to thereby emit each of the lights in the same direction.Type: GrantFiled: January 29, 2010Date of Patent: January 20, 2015Assignee: NEC Display Solutions, Ltd.Inventors: Hiroyuki Saitou, Atsushi Katou, Motoyasu Utsunomiya, Akihiro Osaka, Masateru Matsubara
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Publication number: 20140253881Abstract: An excitation light synthesizing unit includes a polarization splitter film, first and second ¼ wavelength plates, and a reflection member. The polarization splitter film transmits excitation light that is P-polarized light while reflecting excitation light that is S-polarized light. First and second ¼ wavelength plates are arranged on the path along which first excitation light, which is directed toward the polarization splitter film, travels. The reflection member disposed between first and second ¼ wavelength plates. The reflection member reflects second excitation light incident via the polarization splitter film toward the polarization splitter film. The reflection member includes a hole formed to pass the first excitation light.Type: ApplicationFiled: December 27, 2011Publication date: September 11, 2014Inventor: Akihiro Osaka
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Patent number: D778741Type: GrantFiled: August 19, 2015Date of Patent: February 14, 2017Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Akihiro Osaka, Hideto Yamaguchi, Motoya Takewaki
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Patent number: D778742Type: GrantFiled: August 19, 2015Date of Patent: February 14, 2017Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Akihiro Osaka, Hideto Yamaguchi, Motoya Takewaki
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Patent number: D780606Type: GrantFiled: August 19, 2015Date of Patent: March 7, 2017Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Akihiro Osaka, Hideto Yamaguchi, Moyota Takewaki
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Patent number: D786951Type: GrantFiled: August 19, 2015Date of Patent: May 16, 2017Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Akihiro Osaka, Hideto Yamaguchi, Motoya Takewaki
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Patent number: D790490Type: GrantFiled: March 2, 2016Date of Patent: June 27, 2017Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Akihiro Osaka, Hideto Yamaguchi, Motoya Takewaki
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Patent number: D803075Type: GrantFiled: July 28, 2016Date of Patent: November 21, 2017Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Tokunobu Akao, Motoya Takewaki, Akihiro Osaka, Masaaki Ueno, Tetsuya Kosugi, Masashi Sugishita