Patents by Inventor Kiyoshi Ikeda

Kiyoshi Ikeda 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).

  • Publication number: 20120138911
    Abstract: A biscarbazole derivative of the invention is represented by a formula (1A) or (1B) below. In the formula (1A) or (1B): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.
    Type: Application
    Filed: February 14, 2012
    Publication date: June 7, 2012
    Inventors: Tetsuya Inoue, Mitsunori Ito, Kei Yoshida, Kumiko Hibino, Kazuki Nishimura, Toshinari Ogiwara, Kiyoshi Ikeda
  • Publication number: 20120050618
    Abstract: There is a signal processing apparatus, including a gamma correction circuit that performs gamma correction on an input luminance signal and generates an output luminance signal, an output-to-input ratio calculation circuit that calculates a ratio of the output luminance signal to the input luminance signal as an output-to-input ratio of a luminance signal, and a color difference correction circuit that multiplies an input color difference signal by the output-to-input ratio of the luminance signal and generates an output color difference signal. As a result, by correcting the input color difference signal using the output-to-input ratio of the luminance signal, the output color difference signal in which color difference correction has been performed in view of influence of gamma correction can be generated.
    Type: Application
    Filed: August 16, 2011
    Publication date: March 1, 2012
    Applicant: SONY CORPORATION
    Inventors: Kiyoshi Ikeda, Toshimichi Hamada, Yoichi Hirota
  • Publication number: 20120037890
    Abstract: A pyrromethene-boron complex compound represented by the following formula (1); wherein Z1 and Z2 are independently a hydrogen atom, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group or a substituted or unsubstituted aryloxy group, at least one of Z1 and Z2 is an alkoxy group substituted with a fluorine atom or an aryloxy group substituted with a fluorine atom or a fluoroalkyl group, and Z1 and Z2 may form a ring.
    Type: Application
    Filed: February 25, 2010
    Publication date: February 16, 2012
    Inventors: Fumio Okuda, Kiyoshi Ikeda, Takayasu Sado, Takahiko Ochi, Yoshimitsu Tanabe, Bunji Sawano
  • Publication number: 20110278555
    Abstract: A biscarbazole derivative of the invention is represented by a formula (1A) or (1B) below. In the formula (1A) or (1B): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.
    Type: Application
    Filed: April 20, 2011
    Publication date: November 17, 2011
    Inventors: Tetsuya INOUE, Mitsunori ITO, Kei YOSHIDA, Kumiko HIBINO, Kazuki NISHIMURA, Toshinari OGIWARA, Kiyoshi IKEDA
  • Publication number: 20110279020
    Abstract: A biscarbazole derivative of the invention is represented by a formula (1) below. In the formula (1): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.
    Type: Application
    Filed: April 20, 2011
    Publication date: November 17, 2011
    Inventors: Tetsuya INOUE, Mitsunori ITO, Kei YOSHIDA, Kumiko HIBINO, Kazuki NISHIMURA, Toshinari OGIWARA, Kiyoshi IKEDA
  • Publication number: 20110226992
    Abstract: An organic electroluminescence material composition including an organic electroluminescence material and a solvent, the organic electroluminescence material being a naphthacene derivative, and the solvent being a solvent which is represented by the following formula (1).
    Type: Application
    Filed: September 16, 2009
    Publication date: September 22, 2011
    Inventors: Motohiro Takeshima, Kiyoshi Ikeda, Takayasu Sado, Tetsuya Inoue, Yoshiaki Obana, Yukio Miyaki, Keisuke Matsuo, Yasunori Kijima
  • Publication number: 20110019931
    Abstract: There is provided an image recording device, including: a highly-gradating unit for highly-gradating an input image having a first gradation depth, thereby generating a high gradation image having a second gradation depth higher than the first gradation depth; an image quantizing unit for quantizing the high gradation image generated by the highly-gradating unit such that a quantization error is modulated into a band with relatively low sensitivity of human visual characteristics, thereby generating a recording target image having a third gradation depth lower than the second gradation depth; an encoding unit for encoding the recording target image generated by the quantizing unit; and a recording unit for recording the recording target image encoded by the encoding unit in a recording medium.
    Type: Application
    Filed: June 16, 2010
    Publication date: January 27, 2011
    Applicant: Sony Corporation
    Inventors: Toshimichi HAMADA, Masashi Ota, Kiyoshi Ikeda, Hiromasa Naganuma, Yoichi Hirota
  • Publication number: 20100110301
    Abstract: An information processing apparatus includes: a processing system performing processing on an original image; and a gradation conversion section having a gradation conversion function of receiving image data from the processing system, converting a number of bits of the image data, and expressing pseudo grayscales before the gradation conversion in a grayscale converted image, the gradation conversion section being capable of changing the gradation conversion function and performing conversion processing on the image, wherein the gradation conversion section adds and outputs a determination flag indicating whether the gradation conversion processing has been performed at the time of outputting the image data.
    Type: Application
    Filed: October 21, 2009
    Publication date: May 6, 2010
    Applicant: SONY CORPORATION
    Inventors: Masashi Ota, Toshimichi Hamada, Kiyoshi Ikeda, Hiromasa Naganuma, Yoichi Hirota, Naomasa Takahashi
  • Publication number: 20100104211
    Abstract: An image processing apparatus includes: ?? modulation means for applying ?? modulation to an image; analog conversion means for converting a signal of the image, whose gradation is converted by the ?? modulation means, into an analog signal; digital output means for outputting a digital signal of the image after gradation conversion; and analog output means for outputting an analog signal of the image after gradation conversion. The ?? modulation means includes arithmetic means for filtering a quantization error; adding means for adding a pixel value of the image and output of the arithmetic means; quantization means for quantizing output of the adding means and outputting a quantized value; and subtracting means for calculating a difference between the output of the adding means and the quantized value. A filter coefficient for the filtering corresponding to the analog output is determined according to a frequency characteristic of the analog conversion means.
    Type: Application
    Filed: October 13, 2009
    Publication date: April 29, 2010
    Applicant: Sony Corporation
    Inventors: Yoichi Hirota, Kiyoshi Ikeda, Masashi Ota, Toshimichi Hamada, Hiromasa Naganuma, Makoto Tsukamoto
  • Publication number: 20100104218
    Abstract: An image processing apparatus includes a multiplying unit configured to multiply an original image by a coefficient ? used for ? blending, thereby generating an ?-fold original image, a quantizing unit configured to quantize the ?-fold original image and output a quantized ?-fold original image obtained through the quantization, a gradation converting unit configured to perform gradation conversion on the ?-fold original image by performing a dithering process, thereby generating a gradation-converted ?-fold original image, and a difference calculating unit configured to calculate a difference between the gradation-converted ?-fold original image and the quantized ?-fold original image, thereby obtaining a high-frequency component in the gradation-converted ?-fold original image, the high-frequency component being added to a quantized composite image, which is generated by quantizing a composite image obtained through ? blending with a quantized image generated by quantizing the original image.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 29, 2010
    Applicant: Sony Corporation
    Inventors: Makoto Tsukamoto, Kiyoshi Ikeda
  • Publication number: 20100079483
    Abstract: An image processing apparatus prevents the inappropriate application of error diffusion and adaptively applies palette conversion functions according to the properties of the source. A processing subsystem performs various processing with respect to an original video source. A palette converter converts the palette bit depth, having modifiable palette conversion functions for creating the illusion of expressing the pre-conversion palette tones in the post-conversion image. A controller turns on the palette converter, turns off the palette converter, or modifies the palette conversion functions thereof, in accordance with at least original source information and system-wide settings information.
    Type: Application
    Filed: September 24, 2009
    Publication date: April 1, 2010
    Applicant: Sony Corporation
    Inventors: Hiromasa Naganuma, Masashi Ota, Toshimichi Hamada, Kiyoshi Ikeda, Yoichi Hirota, Naomasa Takahashi
  • Publication number: 20100039027
    Abstract: An organic electroluminescent device including, a cathode, an anode, and at least an emitting layer and an electron transporting layer between the cathode and the anode, the emitting layer including a host compound and a fluoranthene compound, the electron transporting layer including a compound represented by (A)u-(B)v wherein A is a group containing an aromatic hydrocarbon group having 3 or more carbon rings, B is a heterocyclic group which may be substituted, and u and v are each an integer of 1 to 6.
    Type: Application
    Filed: February 19, 2008
    Publication date: February 18, 2010
    Applicant: IDEMITSU KOSAN CO., LTD
    Inventors: Yoriyuki Takashima, Masakazu Funahashi, Takashi Arakane, Yumiko Mizuki, Hiroshi Yamamoto, Chishio Hosokawa, Kiyoshi Ikeda
  • Publication number: 20090091240
    Abstract: Provided is a condensed ring-containing compound having a condensed dicyclic group having a specific structure and carbazolyl groups and/or indolyl groups, and further provided is an organic electroluminescent device in which an organic thin film layer comprising a single layer or plural layers having at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer contains the condensed ring-containing compound described above in the form of a single component or a mixed component, whereby a current efficiency and a heat resistance are high, and a lifetime is very long.
    Type: Application
    Filed: October 19, 2005
    Publication date: April 9, 2009
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kiyoshi Ikeda, Mitsunori Ito, Takashi Arakane
  • Publication number: 20090053488
    Abstract: An organic electroluminescence device includes: an anode; a cathode; and a luminescent layer (5) provided between the anode and the cathode. In the organic electroluminescence device, the luminescent layer (5) includes two or more doped regions (51) each of which contains a luminescent dopant, and at least one non-doped region (52) in which no luminescent dopant is contained.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 26, 2009
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Yukitoshi JINDE, Takayasu Sado, Kiyoshi Ikeda, Kenichi Fukuoka
  • Publication number: 20090033218
    Abstract: Provided is an organic electroluminescence device in which a single or a plurality of thin organic layers including at least a light emitting layer are sandwiched between an anode and a cathode. At least one of the thin organic layers includes: (A) a perylene compound having at least one halogen atom in its molecule; and (B) a compound having a fused aromatic ring having a ring carbon atoms of 12 to 15. The organic EL device has a high luminous efficiency and a long lifetime and is capable of emitting light having a color range of from an orange color to a red color.
    Type: Application
    Filed: February 19, 2007
    Publication date: February 5, 2009
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kiyoshi Ikeda, Mitsunori Ito
  • Publication number: 20090021160
    Abstract: A material for an organic electroluminescence device which can be a cis-isomer or a trans-isomer of structural isomers, the content of the trans-isomer being more than that of the cis-isomer. The ratio (t/c) of the trans-isomer (t) and the cis-isomer (c) is preferably 2 or more.
    Type: Application
    Filed: February 2, 2007
    Publication date: January 22, 2009
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kiyoshi Ikeda, Takayasu Sado, Hisayuki Kawamura
  • Publication number: 20090015144
    Abstract: A fluoranthene compound with a specified asymmetric structure; an organic EL device which is composed of one or more organic compound layers including at least one emitting layer sandwiched between a pair of electrodes, wherein at least one of the organic compound layers contains at least one kind of the fluoranthene compound; and a solution containing a material for the organic EL which is composed of the fluoranthene compound as the material for the organic EL and a solvent. An organic electroluminescence (EL) device having a superior luminance of light emission, an enhanced efficiency of light emission, and a prolonged lifetime and a compound realizing the device are provided.
    Type: Application
    Filed: October 31, 2007
    Publication date: January 15, 2009
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Yoriyuki Takashima, Masakazu Funahashi, Kiyoshi Ikeda, Tetsuya Inoue, Chishio Hosokawa, Yumiko Mizuki
  • Publication number: 20080290795
    Abstract: Provided is an organic electroluminescence device in which a reduction in luminance is suppressed and a lifetime is significantly improved. The object is achieved by an organic electroluminescence device having organic compound layers including an organic emitting layer, which is interposed between at least one pair of electrodes, in which the organic emitting layer is formed of an organic compound material containing an impurity composed of a hydroxyl group-containing compound at a concentration of less than 0.15% by mass, and a method of selecting an organic compound material for the organic electroluminescence device, the method including: determining the content of the impurity; and selecting an organic compound material in which the content is less than 0.15% by mass so that the material is used for forming the organic emitting layer. Provided are a coating film-forming ink, a method of forming a thin film, and a method of producing an organic electroluminescence device.
    Type: Application
    Filed: April 4, 2008
    Publication date: November 27, 2008
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Takayasu Sado, Kiyoshi Ikeda, Kenichi Fukuoka, Chishio Hosokawa
  • Publication number: 20080254319
    Abstract: In an organic electroluminescence device including a cathode and an anode, at least an emitting layer and an electron transporting layer are provided between the cathode and the anode. The emitting layer contains a host material formed of a naphthacene derivative represented by the following formula (1) and a dopant material formed of a compound having a pyrromethene skeleton represented by the following formula (2) or a metal complex of the compound. The electron transporting layer is preferably a benzoimidazole derivative.
    Type: Application
    Filed: March 7, 2008
    Publication date: October 16, 2008
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Chishio Hosokawa, Takayasu Sado, Kiyoshi Ikeda
  • Publication number: 20080241588
    Abstract: In an organic electroluminescence device including a cathode and an anode, at least an emitting layer and an electron transporting layer are provided between the cathode and the anode. The emitting layer contains a host material formed of a naphthacene derivative represented by the following formula (1) and a dopant material formed of a diketopyrolopyrrol derivative represented by the following formula (2). The electron transporting layer is preferably a benzoimidazole derivative.
    Type: Application
    Filed: March 7, 2008
    Publication date: October 2, 2008
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Chishio Hosokawa, Takayasu Sado, Kiyoshi Ikeda