Patents by Inventor Shinji Ogawa

Shinji Ogawa 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).

  • Patent number: 9938463
    Abstract: There is provided a liquid crystal display device that uses such a liquid crystal composition is also provided. Provided is a liquid crystal composition that includes a first component which is at least one selected from the group consisting of compounds represented by general formula (1) and a second component which is at least one component selected from the group consisting of compounds represented by general formula (2). Also provided is a liquid crystal display device that uses a liquid crystal composition that contains the first component and the second component.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: April 10, 2018
    Assignee: DIC CORPORATION
    Inventors: Shinji Ogawa, Yoshinori Iwashita, Joji Kawamura, Makoto Negishi
  • Patent number: 9885384
    Abstract: An object is to provide a floating bush bearing device with excellent oscillation stability and small bearing loss. A floating bush bearing device which rotatably supports a rotation shaft includes: a bearing housing, a floating bush rotatably disposed between the rotation shaft and an inner circumferential surface of the bearing housing, in the bearing housing, and a bush side oil supply hole which is formed through the floating bush and is capable of supplying lubricating oil between the rotation shaft and the inner circumferential surface of the floating bush, the inner circumferential surface of the floating bush has a non-circular shape so that a gap portion is formed between the rotation shaft and the inner circumferential surface of the floating bush, the gap portion having a predetermined clearance or larger regardless of relative positions of the rotation shaft and the inner circumferential surface of the floating bush, and the bush side oil supply hole communicates with the gap portion.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: February 6, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaya Futae, Hiroshi Kanki, Noriyuki Hayashi, Hideaki Nishida, Shinji Ogawa, Chiaki Yasuda, Yutaka Ozawa
  • Publication number: 20170342993
    Abstract: A state observation device (30) uses an ADC (37) to digitize a detection signal from a gap sensor (21) at a low-speed sampling period and uses a separation unit (38) to separate the digitized detection signal into vane detection signals considered to be for the detection of a vane of a compressor impeller and non-vane detection signals considered not to be for the detection of a vane. Further, the determination unit (39) extracts a vane peak detection signal considered to be for a vane peak by comparing a vane detection signal with vane detection signals corresponding to other vanes and non-vane detection signals, and a shaft vibration and tip clearance are determined as states of the compressor impeller on the basis of the extracted vane peak detection signal. Thus, the state observation device (30) is capable of observing the state of a rotary machine without carrying out high-speed sampling.
    Type: Application
    Filed: October 6, 2015
    Publication date: November 30, 2017
    Inventors: Tadashi Yoshida, Shinji Ogawa, Koichi Sakamoto, Yukihiro Iwasa
  • Publication number: 20170321122
    Abstract: A liquid crystal display device which enables reductions in image sticking and droplet stains caused in production thereof without degradation of properties such as dielectric anisotropy, viscosity, the upper limit of the temperature of nematic phase, and rotational viscosity (?1); and a method for manufacturing such a liquid crystal display device.
    Type: Application
    Filed: July 26, 2017
    Publication date: November 9, 2017
    Applicant: DIC CORPORATION
    Inventors: Kazuki Kurisawa, Masanao Hayashi, Shinji Ogawa
  • Publication number: 20170306231
    Abstract: An object of the present invention is to provide a composition that has positive ??, exhibits a liquid crystal phase over a wide temperature range, has low viscosity, excellent solubility at low temperatures, and high resistivity and voltage holding ratio, and is stable against heat and light. By using this composition, IPS or TN liquid crystal display devices and the like that have excellent display quality and suppress display failures such as image-sticking and drop marks are provided in high yield. Provided is a composition that contains at least one selected from the group consisting of compounds represented by general formulae (i) and (ii) and at least one compound represented by general formula (iii). Also provided is a liquid crystal display device that uses the composition and an IPS or FFS device that uses the composition.
    Type: Application
    Filed: August 25, 2015
    Publication date: October 26, 2017
    Applicant: DIC Corporation
    Inventors: Shinji Ogawa, Makoto Negishi, Yoshinori Iwashita
  • Publication number: 20170255048
    Abstract: An object of the present invention is to provide a liquid crystal display element using a liquid crystal composition having negative dielectric anisotropy, which is capable of realizing excellent display properties by being used in an FFS mode liquid crystal display element without deteriorating various properties, as a liquid crystal display element, such as dielectric anisotropy, viscosity, a nematic phase upper limit temperature, nematic phase stability at low temperature, and ?1, and burn-in characteristics of the display element. Provided is an FFS mode liquid crystal display element using an n-type liquid crystal composition so as to achieve the above object.
    Type: Application
    Filed: July 27, 2015
    Publication date: September 7, 2017
    Applicant: DIC CORPORATION
    Inventors: Shinji Ogawa, Yoshinori Iwashita, Makoto Negishi, Hiromitsu Kishi
  • Publication number: 20170226420
    Abstract: An object of the present invention is to provide a composition that has positive ??, exhibits a liquid crystal phase over a wide temperature range, has low viscosity, excellent solubility at low temperatures, and high resistivity and voltage holding ratio, and is stable against heat and light. By using this composition, IPS or TN liquid crystal display devices and the like that have excellent display quality and suppress display failures such as image-sticking and drop marks are provided in high yield. Provided is a composition that contains at least one selected from the group consisting of compounds represented by general formulae (i) and (ii) and at least one selected from compounds represented by general formula (iii). Moreover, a liquid crystal display device using the composition and an IPS or FFS device that uses the composition are provided.
    Type: Application
    Filed: August 25, 2015
    Publication date: August 10, 2017
    Applicant: DIC CORPORATION
    Inventors: Shinji Ogawa, Makoto Negishi, Yoshinori Iwashita
  • Publication number: 20170218270
    Abstract: This invention provides an FFS type liquid crystal display containing one type or two or more types of compounds selected from the group of compounds represented by General Formula (i), General Formula (ii), and General Formula (iii) and one type or two or more types of compounds selected from compounds represented by General Formula (II). This display makes it possible to realize excellent display characteristics without deteriorating various liquid crystal display characteristics such as dielectric anisotropy, viscosity, nematic-phase maximum temperature, nematic-phase stability at low temperatures, or ?1 and the display burn-in characteristics.
    Type: Application
    Filed: July 23, 2015
    Publication date: August 3, 2017
    Applicant: DIC Corporation
    Inventors: Kazunori Maruyama, Takashi Kitsunai, Shinji Ogawa
  • Patent number: 9719017
    Abstract: There is provided a liquid crystal display device which enables reductions in image sticking and droplet stains caused in production thereof without degradation of properties such as dielectric anisotropy, viscosity, the upper limit of the temperature of nematic phase, and rotational viscosity (?1); and there is also provided a method for manufacturing such a liquid crystal display device.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: August 1, 2017
    Assignee: DIC CORPORATION
    Inventors: Kazuki Kurisawa, Masanao Hayashi, Shinji Ogawa
  • Publication number: 20170210986
    Abstract: An object of the present invention is to provide a liquid crystal display element which is provided with a photo-alignment film, and does not deteriorate various properties, as a liquid crystal display element, such as dielectric anisotropy, viscosity, a nematic phase upper limit temperature, nematic phase stability at low temperature, and ?1, and burn-in characteristics of the display element. The present invention provides a liquid crystal display element which is excellent in stability at low temperature while maintaining high-speed responsiveness of the liquid crystal composition by using a liquid crystal composition containing a compound represented by General Formula (I) and a compound represented by General Formula (II). Provided is an FFS mode liquid crystal display element using a p-type liquid crystal composition.
    Type: Application
    Filed: July 27, 2015
    Publication date: July 27, 2017
    Applicant: DIC Corporation
    Inventors: Shinji Ogawa, Yoshinori Iwashita, Makoto Negishi, Hiromitsu Kishi
  • Publication number: 20170210988
    Abstract: There is provided a liquid crystal display element. The liquid crystal layer contains a liquid crystal composition between the first substrate and the second substrate. The first common electrode contains a transparent conductive material on the first substrate. The second common electrode contains a transparent conductive material on the second substrate. The pixel electrode contains a transparent conductive material. Distances R between the pixel electrode and the common electrode is smaller than distance G between the first substrate and the second substrate. The common electrode is disposed closer to the first substrate than the pixel electrode over nearly the entire surface of the first substrate. The liquid crystal composition has negative dielectric anisotropy and contains one or two or more compounds selected from the group of compounds represented by General Formula (i), General Formula (ii), and General Formula (iii).
    Type: Application
    Filed: July 23, 2015
    Publication date: July 27, 2017
    Applicant: DIC Corporation
    Inventors: Kazunori Maruyama, Yoshinori Iwashita, Shinji Ogawa
  • Publication number: 20170210985
    Abstract: The present invention provides a liquid crystal display element that exhibits a large potential-difference gradient due to inter-electrode distance in FFS mode or the like and contains one or more compounds selected from the group of compounds represented by General Formula (I) and one or more compounds selected from the group of compounds represented by General Formula (II).
    Type: Application
    Filed: July 23, 2015
    Publication date: July 27, 2017
    Applicant: DIC Corporation
    Inventors: Shinji OGAWA, Yoshinori IWASHITA
  • Patent number: 9715051
    Abstract: There is provided a liquid crystal display device in which a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in the ion density (ID) are prevented and problems of display defects such as white streaks, alignment unevenness, and image sticking are overcome. In the liquid crystal display device, a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in the ion density (ID) are prevented and display defects such as image sticking are suppressed. Therefore, the liquid crystal display device is useful for active matrix liquid crystal display apparatuses that use a VA mode or a PSVA mode and can be applied to liquid crystal display apparatuses of liquid crystal televisions, monitors, cellular phones, smart phones, and the like.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: July 25, 2017
    Assignee: DIC CORPORATION
    Inventors: Shinji Ogawa, Yoshinori Iwashita, Seiji Funakura, Katsunori Shimada
  • Patent number: 9683171
    Abstract: There is provided a liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as dropouts, uneven alignment, and screen burn-in. The liquid crystal display device of the present invention prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is properly used as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: June 20, 2017
    Assignee: DIC CORPORATION
    Inventors: Shinji Ogawa, Yoshinori Iwashita, Seiji Funakura, Katsunori Shimada
  • Patent number: 9677003
    Abstract: Provided are a liquid crystal display device that suppresses occurrence of drop marks during production without degrading various properties, such as dielectric anisotropy, viscosity, nematic phase upper limit temperature, rotational viscosity (?1), and ghosting property, and a method for producing the liquid crystal display device. A liquid crystal display device 10 of the present invention includes a liquid crystal composition layer 13 sandwiched between a first substrate 11 and a second substrate 12 and vertical alignment films 16 and 17 that contain a polymer of a polymerizable compound having a polyimide skeleton as a main chain and a crosslinkable functional group as a side chain. The liquid crystal composition constituting the liquid crystal composition layer 13 contains compounds represented by general formulae (I) and (II).
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: June 13, 2017
    Assignee: DIC CORPORATION
    Inventors: Shinji Ogawa, Yoshinori Iwashita, Takeshi Kuriyama
  • Patent number: 9568876
    Abstract: A damage amount determination device, which is used for an image forming device that forms an image on paper, includes an information acquisition unit that acquires information related to whiteness of the paper used for printing and a damage amount determination unit that determines an amount of damage, which is caused by the paper to a predetermined component of the image forming device when the paper passes through the predetermined component, based on the information related to the whiteness.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: February 14, 2017
    Assignee: Konica Minolta, Inc.
    Inventors: Shinji Ogawa, Yu Mukobayashi, Yasuyuki Inada, Masato Kimura, Yuusuke Mandai
  • Patent number: 9551958
    Abstract: A developing apparatus that develops an electrostatic latent image on an image supporting body using developer including toner and carrier includes a circulation path where the developer circulates, a discharge path connected to the circulation path through which some of the developer passes, and a first recycle path connected to the discharge path and allowing some of the developer flowing into the discharge path to return to the circulation path. The discharge path includes a discharge opening for discharging the developer flowing into the discharge path, and a first return opening for connecting to the first recycle path. The first return opening is located on an upper side in a vertical direction with respect to the discharge opening and located on an upstream side in a pass-through direction of the developer flowing into the discharge path.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: January 24, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yuusuke Mandai, Yasuyuki Inada, Shinji Ogawa, Masato Kimura, Yu Mukobayashi
  • Publication number: 20160370626
    Abstract: The present invention provides a liquid crystal display device which can prevent a decrease in a voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) and solve a problem of a display defect such as white spots, alignment irregularities, burn-in, or the like. The present-invention provides a liquid crystal display device which uses a liquid crystal composition containing a liquid crystal compound having a specific structure as a liquid crystal layer, and an optically anisotropic body obtained by polymerizing a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound having a specific structure at a specific ratio as an in-cell type retardation film.
    Type: Application
    Filed: February 24, 2015
    Publication date: December 22, 2016
    Applicant: DIC CORPORATION
    Inventors: Shinji OGAWA, Yoshinori IWASHITA, Mika YAMAMOTO, Yasuhiro KUWANA, Koichi ENDOU, Kazuaki HATSUSAKA
  • Publication number: 20160349574
    Abstract: An object of the present invention is to provide a liquid-crystal display element using a liquid-crystal composition having negative dielectric anisotropy, capable of realizing excellent display characteristics by being used in a liquid-crystal display element provided with a photo-alignment film, without deteriorating various characteristics as a liquid-crystal display element such as dielectric anisotropy, viscosity, a nematic phase upper limit temperature, nematic phase stability at low temperatures, and ?1, and burn-in characteristics of a display element. A liquid-crystal display element using a liquid-crystal composition containing at least one compound selected from the group consisting of compounds represented by the following General Formula (I) is provided.
    Type: Application
    Filed: October 29, 2014
    Publication date: December 1, 2016
    Applicant: DIC Corporation
    Inventors: Yoshinori Iwashita, Shinji Ogawa, Hiroshi Hasebe, Masanao Takashima
  • Publication number: 20160306236
    Abstract: An object of the present invention is to provide a liquid-crystal display element using a liquid-crystal composition having negative dielectric anisotropy, capable of realising excellent display characteristics by being used in an FFS mode liquid-crystal display element, without deteriorating various characteristics as a liquid-crystal display element such as dielectric anisotropy, viscosity, a nematic phase upper limit temperature, nematic phase stability at low temperatures, and ?1, and burn-in characteristics of a display element.
    Type: Application
    Filed: October 29, 2014
    Publication date: October 20, 2016
    Applicant: DIC Corporation
    Inventors: Yoshinori Iwashita, Shinji Ogawa, Hiroshi Hasebe, Masanao Takashima