Patents by Inventor Akihiko Horita
Akihiko Horita 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: 8026653Abstract: A display device provided with a screen, comprising: an optical filter having a blind sheet that comprises a plurality of semitranslucent layers having translucence arranged side-by-side extending in a horizontal direction and having a predetermined thickness in a vertical direction, and a plurality of transparent layers which are disposed between the semitranslucent layers and which are of a higher translucency than that of the semitranslucent layers and of a greater thickness than the thickness of the semitranslucent layers; and an adhesive member for sticking the optical filter to the screen, wherein the ratio of the transmittance of a limit angle of the screen with respect to the transmittance of the optical filter at the center of the screen is at least 0.10 and not more than 0.50.Type: GrantFiled: June 20, 2007Date of Patent: September 27, 2011Assignee: Panasonic CorporationInventors: Toshiharu Oishi, Minoru Higuchi, Takahide Fujimoto, Akihiko Horita, Ryusuke Fukushima, Eishi Mizobata
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Patent number: 8008846Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: GrantFiled: January 22, 2010Date of Patent: August 30, 2011Assignee: Panasonic CorporationInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Patent number: 7986081Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: GrantFiled: January 22, 2010Date of Patent: July 26, 2011Assignee: Panasonic CorporationInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Patent number: 7768182Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: GrantFiled: November 13, 2007Date of Patent: August 3, 2010Assignee: Panasonic CorporationInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Publication number: 20100149779Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: ApplicationFiled: January 22, 2010Publication date: June 17, 2010Applicant: PANASONIC CORPORATIONInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Publication number: 20100118391Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: ApplicationFiled: January 22, 2010Publication date: May 13, 2010Applicant: PANASONIC CORPORATIONInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Publication number: 20100118478Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: ApplicationFiled: January 22, 2010Publication date: May 13, 2010Applicant: PANASONIC CORPORATIONInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Publication number: 20080180016Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: ApplicationFiled: November 13, 2007Publication date: July 31, 2008Inventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Patent number: 7339311Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: GrantFiled: December 9, 2003Date of Patent: March 4, 2008Assignee: Pioneer CorporationInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Publication number: 20040113532Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.Type: ApplicationFiled: December 9, 2003Publication date: June 17, 2004Applicant: Pioneer CorporationInventors: Toshiharu Oishi, Akihiko Horita, Ryusuke Fukushima
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Patent number: 6686896Abstract: A plasma display panel for color displaying is provided which is so formed that it is possible to improve the contrast and color purity of the display panel while at the same time controlling the brightness drop to a minimum level. In particular, it is possible to effectively inhibit a contrast drop usually caused due to neon emission. In practice, an optical filter capable of attenuating light components each having a wavelength within a range of 560-590 nm is provided on the front side of the plasma display panel. Such plasma display panel includes an electric discharge space containing a discharge gas mainly comprising neon gas and xenon gas.Type: GrantFiled: March 20, 2002Date of Patent: February 3, 2004Assignee: Pioneer CorporationInventors: Toshiharu Oishi, Akihiko Horita, Hiroshi Tsuboi
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Publication number: 20020145386Abstract: A plasma display panel for color displaying is provided which is so formed that it is possible to improve the contrast and color purity of the display panel while at the same time controlling the brightness drop to a minimum level. In particular, it is possible to effectively inhibit a contrast drop usually caused due to neon emission. In practice, an optical filter capable of attenuating light components each having a wavelength within a range of 560-590 nm is provided on the front side of the plasma display panel. Such plasma display panel includes an electric discharge space containing a discharge gas mainly comprising neon gas and xenon gas.Type: ApplicationFiled: March 20, 2002Publication date: October 10, 2002Applicant: Pioneer Corporation and Shizuoka Pioneer CorporationInventors: Toshiharu Oishi, Akihiko Horita, Hiroshi Tsuboi