Patents by Inventor Masaru Ishikawa
Masaru Ishikawa 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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Publication number: 20100164910Abstract: An image display device is provided with a display section (10) for displaying a two-dimensional image on a screen; a microlens array board (22), which is arranged in an optical path of display light constituting the two-dimensional image, and transmits the display light to display an actual image of the two-dimensional image on an imaging plane positioned in a space on a side opposite to the screen; and a display control section (100) for controlling the display section (10) to perform blocking process to have a part of an actual object on a side further than the imaging plane not seen by an observer who observes the imaging plane.Type: ApplicationFiled: August 3, 2006Publication date: July 1, 2010Applicant: PIONEER CORPORATIONInventors: Isao Tomisawa, Masaru Ishikawa, Katsumi Unehara
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Publication number: 20100097447Abstract: It is an object to provide an image display device that does not damage a feeling of a three-dimensional shape of an object displayed as a floating image even if a contrast of a display unit is so bad that floating blacks occur. An image display device (100) is comprised of a display unit (10) having an image display surface (11) for displaying a two-dimensional image, an image transmitting panel (20) disposed apart from the image display surface (11), and a floating image display unit (1) that forms an image of light projected from the image display surface (11) on an image forming plane (30) in a space positioned on a reverse side to a side opposite to the display unit (10) of the image transmitting panel (20) to display a floating image. A shielding plate (2) is disposed at a place from the image display surface (11) of the display unit (10) to an observing place.Type: ApplicationFiled: March 30, 2007Publication date: April 22, 2010Applicant: Pioneer CorporationInventors: Isao Tomisawa, Takeshi Furugoori, Masaru Ishikawa
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Publication number: 20100066662Abstract: An image display device makes it possible to easily display a stereoscopically two-dimensional image and to improve its direction effect. A display device includes a first display for displaying a first image on a first screen, an image transmission element that is set in a light path for a display light component of the first image and that transmits the display light component of the first image so that a real image of the first image is displayed on an image forming surface positioned at a space on a side opposite to the first screen as a stray image. Further, the display device includes a. controller for controlling the first display so that at least one icon out of a plurality of icons (A-H) is displayed as a stray image disposed along a virtual path with a predetermined shape set in a real space portion including the first mentioned space.Type: ApplicationFiled: October 2, 2006Publication date: March 18, 2010Applicant: PIONEER CORPORATIONInventors: Isao Tomisawa, Masaru Ishikawa, Katsumi Unehara, Takehiro Takahashi
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Publication number: 20100007602Abstract: An image display device easily displays a stereoscopically two-dimensional image, improving its direction effect and interactivity. A first display displays a first image on a first screen. An image transmission element in a light path for a display light component of the first image transmits the display light component of the first image, displaying a real image of the first image on an image forming surface positioned at a distance on a side opposite the first screen as a stray image. A second display displays a second image on a second screen as a directly visible image so the stray image is observable from an observation position. A position detecting element outputs a position signal corresponding to detected object position. A control element controls the first or second display according to the output position signal so the stray and/or directly visible image changes correspondingly with the position of the object.Type: ApplicationFiled: October 2, 2006Publication date: January 14, 2010Applicant: PIONEER CORPORATIONInventors: Isao Tomisawa, Masaru Ishikawa, Katsumi Unehara, Takehiro Takahashi
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Publication number: 20100007636Abstract: An image display device displays a stereoscopically two-dimensional image, improving its direction effect. A first display displays a first image on a first screen, an image transmission element is in a light path for a display light component of the first image and transmits the display light component of the first image so a real image of the first image appears on an image forming surface opposite the first screen as a stray image. A second display displays a second image on a second screen as a directly visible image so the stray image is observable from an observation position. A controller controls at least either the first or second display based on a relative position in a predetermined spot displayed in the directly visible image with respect to an intersection line of the image forming surface and the second screen so the stray and/or directly visible image changes.Type: ApplicationFiled: October 2, 2006Publication date: January 14, 2010Applicant: PIONEER CORPORATIONInventors: Isao Tomisawa, Masaru Ishikawa, Katsumi Unehara, Takehiro Takahashi
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Publication number: 20080273083Abstract: To facilitate seeing of the image on a peripheral region which may become difficult to see as the screen size increases. A stereoscopic two-dimensional image display device includes a display unit 1 including an image display plane 1a on which an image is displayed; an image transfer panel 3 arranged apart from the image display plane, for imaging light emitted from the image display plane on an imaging plane 2 in a space, thereby displaying a stereoscopic two-dimensional image; and an optical path changing member (not shown) arranged between the image display plane and the imaging plane, for changing the optical path of the light emitted from the peripheral edge having a predetermined region constituting the image display plane. The optical path of light emitted from the peripheral edge is changed by the optical path changing means so that the light can be reached the eyes of a viewer 100 who sees at a near position.Type: ApplicationFiled: September 28, 2005Publication date: November 6, 2008Applicant: PIONEER CORPORATIONInventors: Isao Tomisawa, Masaru Ishikawa
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Patent number: 7342130Abstract: A method for producing acrylic acid, comprising (a) a absorption step of absorbing acrylic acid-containing gas obtained by oxidizing raw material gas in gas phase as crude acrylic acid-containing solution, (b1) a step of separating high boiling point components that separates the crude high boiling point components at a distillation column as (b) a step of purifying the acrylic acid-containing solution, and further, (c) a decomposition step of decomposing Michael adducts contained in the high boiling point components to prepare acrylic acid and (d) a collection step of collecting acrylic acid generated in the decomposition step (c), whereby the proportion of the amount of maleic acid to a sum of the sum of the maleic acid and maleic anhydride in the high boiling point components that are fed from the high boiling point component separation step (b1) to the decomposition step (c) satisfies a equation below: [ Equation ? ? 1 ] ? ` [ Maleic ? ? acid ? ? ( mass ) ] [Type: GrantFiled: December 6, 2006Date of Patent: March 11, 2008Assignee: Nippon Shokubai Co., Ltd.Inventors: Fumio Shibusawa, Masaru Ishikawa
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Publication number: 20080030428Abstract: There is provided a stereoscopic two-dimensional image display device including: a stereoscopic image display unit that includes a display unit having an image display surface that displays an image, and an image transmitting panel apart from the image display surface, and a stereoscopic two-dimensional image by imaging light emitted from the image display surface, on an imaging surface at a side opposite to the display unit with respect to the image transmitting panel; a position detecting sensor that outputs an output signal corresponding to a position of a detection target inserted to the imaging surface; and a control unit that changes the image displayed on the image display surface in accordance with the output signal from the position detecting sensor so as to change the stereoscopic two-dimensional image displayed on the imaging surface. A user interface region is formed on a peripheral portion of the imaging surface.Type: ApplicationFiled: September 28, 2005Publication date: February 7, 2008Inventors: Isao Tomisawa, Masaru Ishikawa
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Patent number: 7292392Abstract: An apparatus includes: an image display unit including a display device having an image display surface that displays a two-dimensional image and a microlens array disposed in spaced-apart relation to the image display surface, the image display unit that displays a stereoscopic two-dimensional image by allowing the light emitted from the image display surface to form an image on an image forming plane in a space located on a side opposite to the display device with respect to the the microlens array; at least one switch; at least one illumination device that illuminates the space when the switch is turned on; and a controller that controls the display device to change the two-dimensional image displayed on the image display surface in accordance with an illuminating state of the illumination device.Type: GrantFiled: November 12, 2004Date of Patent: November 6, 2007Assignee: Pioneer CorporationInventors: Isao Tomisawa, Masaru Ishikawa
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Publication number: 20070216601Abstract: The object of the invention is to improve visibility when a stereoscopic two-dimensional image display apparatus is obliquely installed. A stereoscopic two-dimensional image display apparatus includes: a display unit 1 having an image display surface 1A displaying a two-dimensional image; and a micro lens array 3 (image transfer panel) that displays a stereoscopic image on a stereoscopic image display surface 2 in space separated from the image display surface 1A by focusing light emitted from the image display surface 1A on the stereoscopic image display surface 2. In the stereoscopic two-dimensional image display apparatus, when a housing 20 provided with the micro lens array 3 is tilted at an angle ? to the stereoscopic image display surface 2, the display unit 1 is tilted at an angle 2?, which is two times the angle ?, in synchronization with the tilting of the micro lens array 3.Type: ApplicationFiled: March 11, 2005Publication date: September 20, 2007Applicant: Pioneer CorporationInventors: Isao Tomisawa, Masaru Ishikawa
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Publication number: 20070167650Abstract: A process for producing (meth)acrylic acid while preventing a polymerization of (meth)acrylic acid using a polymerization inhibitor solution, comprising the steps of: obtaining a (meth)acrylic solution containing formaldehyde from any step of the process for producing (meth)acrylic acid to use as a solvent of the polymerization inhibitor solution, and adding phenothiazine or derivatives thereof and/or hydroquinone or derivatives thereof to the (meth)acrylic solution containing formaldehyde to obtain polymerization inhibitor solution so that the polymerization inhibitor solution contains 0.1 mass % to 3 mass % of phenothiazine or derivatives thereof and/or 0.1 mass % to 10 mass % of hydroquinone or derivatives thereof, wherein the polymerization inhibitor solution contains 10 ppm to 5000 ppm (based on mass) of formaldehyde.Type: ApplicationFiled: January 19, 2007Publication date: July 19, 2007Inventors: Masaru Ishikawa, Yoshitake Ishii
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Publication number: 20070159525Abstract: An object of the invention is to obtain a stereoscopic display apparatus which makes it possible to alleviate a viewer's fatigue and allow a stereoscopic two-dimensional image to be recognized more naturally, thereby improving the sense of realism, visibility, and amusement features. In the invention, an image display unit 21 is constituted by a display portion 27 having an image display surface for displaying a two-dimensional image and an image transmission panel 29 disposed in spaced-apart relation to the image display surface 31a and adapted to allow the light emergent from the image display surface 31a to form an image so as to display a two-dimensional image stereoscopically. A plurality of image display units 21 and 21 are installed such that the image transmission panels 29 form the predetermined angle ? with respect to each other.Type: ApplicationFiled: March 11, 2005Publication date: July 12, 2007Inventors: Isao Tomisawa, Masaru Ishikawa
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Patent number: 7230061Abstract: The present invention is a method of producing a (meth)acrylic acid based water-soluble polymer having a content of groups in neutralized state of not more than 90 mole percent, where the sum total of acid groups and groups in neutralized state contained in the (meth)acrylic acid based water-soluble polymer is taken as 100 mole percent, which comprises a photopolymerization step of polymerizing a monomer component by irradiating near-ultraviolet rays to a reaction mixture, the said reaction mixture comprising the monomer component, a photopolymerization initiator, a chain transfer agent and a polymerization solvent, the said monomer component containing not less than 50 mole percent of a (meth)acrylic acid monomer, with the whole monomer component subjected to polymerization being taken as 100 mole percent, and a concentration of the said monomer component in the reaction mixture at the time of polymerization being 40 to 97% by mass.Type: GrantFiled: December 6, 2002Date of Patent: June 12, 2007Assignee: Nippon Shokubai Co., Ltd.Inventors: Shorbu Shioji, Masaru Ishikawa
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Publication number: 20070129572Abstract: A method for producing acrylic acid, comprising (a) a absorption step of absorbing acrylic acid-containing gas obtained by oxidizing raw material gas in gas phase as crude acrylic acid-containing solution, (b1) a step of separating high boiling point components that separates the crude high boiling point components at a distillation column as (b) a step of purifying the acrylic acid-containing solution, and further, (c) a decomposition step of decomposing Michael adducts contained in the high boiling point components to prepare acrylic acid and (d) a collection step of collecting acrylic acid generated in the decomposition step (c), whereby the proportion of the amount of maleic acid to a sum of the sum of the maleic acid and maleic anhydride in the high boiling point components that are fed from the high boiling point component separation step (b1) to the decomposition step (c) satisfies a equation below: [ Equation ? ? ? 1 ] ? ? ` [ Maleic ? ? ? acid ? ( mass ) ] [ MaleiType: ApplicationFiled: December 6, 2006Publication date: June 7, 2007Inventors: Fumio Shibusawa, Masaru Ishikawa
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Patent number: 7212771Abstract: A grid electrode, disposed along a corotron wire, includes a planar, plate-shaped member having plural openings in each of which a longitudinal direction and a short side direction are formed, the longitudinal directions of the respective openings being lined up to be in a same direction, and connecting portions connecting openings adjacent to each other in a opening longitudinal direction and connecting portions connecting openings adjacent to each other in a opening short side direction. At each opening, a shortest distance from a center point to an opening edge is less than 1.5 mm, a grid opening ratio is greater than or equal to 82%, and a length of the longitudinal direction is at least 1.3 times a length of the short side direction. The connecting portions connecting openings adjacent to each other in the opening longitudinal direction are not disposed on a same line which is orthogonal to the corotron wire.Type: GrantFiled: April 29, 2005Date of Patent: May 1, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Mihoko Tanaka, Akihito Nishimura, Masaru Ishikawa
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Publication number: 20070025755Abstract: An image forming device includes an image carrier, a cleaning device, a charging device and a shielding member. The image carrier carries a toner image thereon. The cleaning device removes a toner on the image carrier. The charging device charges the image carrier. The shielding member is disposed between the cleaning device and the charging device. The shielding member is in contact with the image carrier in an area where the image carrier is charged.Type: ApplicationFiled: July 26, 2006Publication date: February 1, 2007Inventors: Masaru Ishikawa, Takashi Kanagawa, Akihito Nishimura, Hiroshi Hashino, Yuzo Ichikawa
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Patent number: 7154675Abstract: An image display apparatus includes a display having an image display surface which displays a two-dimensional image of an object including a three-dimensional object, and an image transmitting panel spaced apart from the image display surface for creating an imaging plane displaying a real image of the two-dimensional image in a space opposite to the display. The image transmitting panel and the imaging plane are non-parallel with each other.Type: GrantFiled: October 27, 2003Date of Patent: December 26, 2006Assignee: Pioneer CorporationInventors: Masaru Ishikawa, Takashi Nakano, Akira Imamura
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Publication number: 20060173088Abstract: A method for efficient production of a water-soluble porous polymer and a water-soluble porous polymer excelling in solubility in water are provided. A method for the production of the polymer is characterized by the fact that an aqueous monomer solution containing an ethylenically unsaturated monomer is polymerized while it is containing bubbles therein. The method can simplify the drying and crushing steps and the water-soluble porous polymer consequently obtained excels in solubility in water.Type: ApplicationFiled: July 16, 2004Publication date: August 3, 2006Inventors: Shigeyuki Nozaki, Daisuke Imai, Satoshi Yamada, Shuichi Toriya, Hidekazu Kozuki, Masaru Ishikawa
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Patent number: 7038851Abstract: An image display device includes a display portion, an image transmission panel, a stereo frame and a video signal supply portion. The display portion has an image display surface for displaying an image inclusive of a stereo image. The image transmission panel is disposed in a space on a side opposite to the display portion so as to be separated from and parallel to the image display surface. The image transmission panel forms the image displayed on the image display surface. The stereo frame is disposed on a part of an image-forming plane where the image is formed. The video signal supply portion supplies a video signal to the display portion so that the stereo image formed on the image-forming plane moves between an inside space of the stereo frame and an outside space of the stereo frame.Type: GrantFiled: April 28, 2003Date of Patent: May 2, 2006Assignee: Pioneer CorporationInventors: Masaru Ishikawa, Hiroshi Toriumi
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Patent number: 7012745Abstract: The display unit displays two-dimensional picture. When the panel unit is at the first position, the microlens unit confronts the display unit with the spacing substantially equal to the focal length of the microlens unit. Therefore, the two-dimensional picture is visualized as a pseudo-stereoscopic picture. On the other hand, when the panel unit is at the second position, the microlens unit does not confront the display unit, and hence a user can directly see the two-dimensional picture on the display unit.Type: GrantFiled: August 29, 2001Date of Patent: March 14, 2006Assignee: Pioneer CorporationInventor: Masaru Ishikawa