Patents by Inventor Eiichi Kiuchi
Eiichi Kiuchi 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: 8268200Abstract: Provided is a pigment dispersing composition for a color filter including a color material, a resin, and an organic solvent which may dissolve the resin, wherein a modified pigment (D) is contained as the color material which includes, on the surface of a pigment (A), a polymer (P) obtained by polymerizing a polymer (B) containing a polymerizable unsaturated group soluble in a non-aqueous solvent and at least one type of polymerizable unsaturated monomer (C) which is soluble in the non-aqueous solvent and becomes either insoluble or poorly soluble following polymerization, alternatively wherein a modified pigment (D) is contained as the color material which is obtained, under the presence of a pigment (A), a non-aqueous solvent, and a polymer (B) containing a polymerizable unsaturated group soluble in the non-aqueous solvent, by polymerizing at least one type of polymerizable unsaturated monomer (C).Type: GrantFiled: March 23, 2009Date of Patent: September 18, 2012Assignee: DIC CorporationInventors: Hiroshi Kinoshita, Seiji Funakura, Eiichi Kiuchi, Yoshinori Katayama
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Patent number: 8211599Abstract: A green pigment for a color filter including a phthalocyanine green pigment and capable of expressing a region of xy-chromaticity coordinate enclosed by predetermined equations 1, 2 and 3 defined by the XYZ color system of the CIE when the green pigment is solely subjected to colorimetry. Moreover, using the above-mentioned green pigment, it provides a photosensitive color composition capable of forming a color filter having a wide color reproduction range and a high transmittance. Furthermore, it provides a color filter having a wide color reproduction range and a high transmittance with a green pixel formed using the above mentioned photosensitive color composition, and a liquid crystal panel using the color filter.Type: GrantFiled: July 13, 2010Date of Patent: July 3, 2012Assignees: Dai Nippon Printing Co., Ltd., Dic CorporationInventors: Masahiro Tatsuzawa, Shunsuke Sega, Akitaka Nishio, Arata Kudou, Eiichi Kiuchi, Hiroshi Katsube
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Publication number: 20110075077Abstract: A green pigment for a color filter including a phthalocyanine green pigment and capable of expressing a region of xy-chromaticity coordinate enclosed by predetermined equations 1, 2 and 3 defined by the XYZ color system of the CIE when the green pigment is solely subjected to colorimetry. Moreover, using the above-mentioned green pigment, it provides a photosensitive color composition capable of forming a color filter having a wide color reproduction range and a high transmittance. Furthermore, it provides a color filter having a wide color reproduction range and a high transmittance with a green pixel formed using the above mentioned photosensitive color composition, and a liquid crystal panel using the color filter.Type: ApplicationFiled: July 13, 2010Publication date: March 31, 2011Applicants: DAI NIPPON PRINTING CO., LTD., DIC CORPORATIONInventors: Masahiro TATSUZAWA, Shunsuke SEGA, Arata KUDOU, Eiichi KIUCHI, Hiroshi KATSUBE, Akitaka NISHIO
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Publication number: 20100308284Abstract: Provided is a pigment dispersing composition for a color filter including a color material, a resin, and an organic solvent which may dissolve the resin, wherein a modified pigment (D) is contained as the color material which includes, on the surface of a pigment (A), a polymer (P) obtained by polymerizing a polymer (B) containing a polymerizable unsaturated group soluble in a non-aqueous solvent and at least one type of polymerizable unsaturated monomer (C) which is soluble in the non-aqueous solvent and becomes either insoluble or poorly soluble following polymerization.Type: ApplicationFiled: March 23, 2009Publication date: December 9, 2010Applicant: DIC CorporationInventors: Hiroshi Kinoshita, Seiji Funakura, Eiichi Kiuchi, Yoshinori Katayama
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Patent number: 7781129Abstract: A green pigment for a color filter including a phthalocyanine green pigment and capable of expressing a region of xy-chromaticity coordinate enclosed by predetermined equations 1, 2 and 3 defined by the XYZ color system of the CIE when the green pigment is soley subjected to colorimetry. Moreover, using the above-mentioned green pigment, it provides a photosensitive color composition capable of forming a color filter having a wide color reproduction range and a high transmittance. Furthermore, it provides a color filter having a wide color reproduction range and a high transmittance with a green pixel formed using the above-mentioned photosensitive color composition, and a liquid crystal panel using the color filter.Type: GrantFiled: July 23, 2003Date of Patent: August 24, 2010Assignees: Dai Nippon Printing Co., Ltd., Dic CorporationInventors: Masahiro Tatsuzawa, Shunsuke Sega, Arata Kudou, Eiichi Kiuchi, Hiroshi Katsube, Akitaka Nishio
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Publication number: 20060098316Abstract: An object of the present invention is to provide a green pigment for a color filter, capable of displaying the chromaticity coordinates not to be displayed by the conventional green pigments, having the excellent color strength as a green color which is not excessively strong in a blue tinge, and a high transmittance, and moreover, to provide a photosensitive color composition, a pigment dispersion, a color filter and a liquid crystal panel, using the above-mentioned green pigment. In order to achieve the above-mentioned object, the present invention provides a green pigment for a color filter comprised of a phthalocyanine green pigment and capable of expressing a region of xy-chromaticity coordinate enclosed by predetermined equations 1, 2 and 3 defined by the XYZ color system of the CIE when the green pigment is solely subjected to colorimetry.Type: ApplicationFiled: July 23, 2003Publication date: May 11, 2006Inventors: Masahiro Tatsuzawa, Shunsuke Sega, Arata Kudou, Eiichi Kiuchi, Hiroshi Katsube, Akitaka Nishio
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Patent number: 6826001Abstract: The present invention provides a color filter which is more durable than a dye-type color filter and also has green pixel portions which exhibit a bright green color having a strong yellowish tinge when used in a liquid crystal display device using a three-band lamp having a main emission line of green light of about 545 nm as a light source, thus enabling the liquid crystal display device to display bright images even when using a backlighting light source having a low intensity. This color filter comprises green pixel portions which (1) contain a halogenated metal phthalocyanine dye wherein 8 to 16 halogen atoms are bonded to benzene rings in one phthalocyanine molecule, and (2) exhibit maximum transmittance at a wavelength within a range from 520 nm to 590 nm with respect to the transmission spectra of the entire range of visible light.Type: GrantFiled: October 18, 2002Date of Patent: November 30, 2004Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Seiji Funakura, Iemasa Yao, Arata Kudou, Eiichi Kiuchi, Hiroshi Katsube
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Publication number: 20030151708Abstract: The present invention provides a color filter which is more durable than a dye-type color filter and also has green pixel portions which exhibit a bright green color having a strong yellowish tinge when used in a liquid crystal display device using a three-band lamp having a main emission line of green light of about 545 nm as a light source, thus enabling the liquid crystal display device to display bright images even when using a backlighting light source having a low intensity. This color filter comprises green pixel portions which (1) contain a halogenated metal phthalocyanine dye wherein 8 to 16 halogen atoms are bonded to benzene rings in one phthalocyanine molecule, and (2) exhibit maximum transmittance at a wavelength within a range from 520 nm to 590 nm with respect to the transmission spectra of the entire range of visible light.Type: ApplicationFiled: October 18, 2002Publication date: August 14, 2003Inventors: Seiji Funakura, Iemasa Yao, Arata Kudou, Eiichi Kiuchi, Hiroshi Katsube
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Patent number: 5036328Abstract: A pulse compressing apparatus for use in a radar system receives an input signal data stream which has been received by the radar system and which corresponds to a transmitted long pulse. A weight coefficient generator generates the same number of weight coefficients as the number of input signal values in the input signal data stream. The same number of arithmetic units is provided and the weight coefficients are sequentially transferred to each arithmetic means where they are processed with the input signal values. The results of the processing from the arithmetic units are added together to produce a compressed pulse output.Type: GrantFiled: May 31, 1990Date of Patent: July 30, 1991Assignee: NEC CorporationInventors: Hiroshi Nakamura, Eiichi Kiuchi
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Patent number: 4839655Abstract: A radar system includes N Doppler filters (N is an integer larger than 1), N CFAR (Constant False Alarm Rate) processing means, a video selector, automatic target detecting means, a video integrator, and a D/A converter. The N CFAR processing means are respectively connected to output terminals of the Doppler filters and automatically adapt amplitude distribution characteristics of a signal, such as clutter and receiver noise, and convert the signal into a signal having the same amplitude distribution characteristics as the receiver noise and suppressing the converted signal. The video selector is connected to output terminals of the N CFAR processing means and selects an output signal from any one thereof in units of radar range bins and synthesizes an N channel signals into a single channel signal. The automatic target detecting means is connected to an output terminal of the video selector.Type: GrantFiled: December 23, 1986Date of Patent: June 13, 1989Assignee: NEC CorporationInventor: Eiichi Kiuchi
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Patent number: 4658255Abstract: An adaptive radar signal processing apparatus for a radar system wherein filter coefficients are switched for individual regions so that optimum filter characteristics can be obtained for the individual stationary clutter region, moving clutter region, clear region, etc. thereby providing suppression of undesired signals which is adapted for each region.Type: GrantFiled: July 23, 1984Date of Patent: April 14, 1987Assignee: NEC CorporationInventors: Hiroshi Nakamura, Eiichi Kiuchi, Toshihiko Hagisawa
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Patent number: 4654665Abstract: A radar system comprises means for forming a transmission pulse signal as m sets of n pulses, the individual sets having respective PRPs Ti (i=1, 2, . . . , m) moving target detection means, and angle measurement means utilizing beam-to-beam amplitude comparison and interpolation for a given moving target. Beam-to-beam amplitude comparison and interpolation is carried out at least twice for one target by making use of a pair of video signals with the same PRP processed by the moving target detection means. The angle measurement is achieved through a predetermined correlation processing over thus obtained interpolated angle values for a target.Type: GrantFiled: July 23, 1984Date of Patent: March 31, 1987Assignee: NEC CorporationInventors: Eiichi Kiuchi, Yuichi Tomita, Toshiyuki Izutani
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Patent number: 4577193Abstract: A coherent sidelobe canceller configured as a linear array antenna system having a digital open-loop configuration comprising signal receiver means having (N+1) channels (N is an integer more than one) comprising a main antenna, N auxiliary antennas, and (N+1) signal receiver circuits connected to (N+1) antennas including said main antenna with a one-to-one relationship, to produce radar video signals; analog-to-digital converter means, each channel being connected to corresponding one of said signal receiving means to convert said radar video signals to digital signals; memory means connected to said analog-to-digital converting means to store said digital signals therein; weighting coefficient calculating means connected to all (N+1) channels of said analog-to-digital converting means to perform statistical calculation processing with respect to time series digital signals, thus calculating weighting coefficients based on statistical characteristic of an input signal; multiplier means having (N+1) channels,Type: GrantFiled: October 18, 1984Date of Patent: March 18, 1986Assignee: NEC CorporationInventors: Eiichi Kiuchi, Hiroshi Sawanaka, Yuichi Tomita
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Patent number: 4053885Abstract: A moving target indication radar is disclosed in which the zero-Doppler-speed components of the radar return signal are eliminated by correlation processing in the azimuthal direction. In some cases, a similar correlation processing is concurrently performed in the range direction. The moving target indication radar has both a radar signal analog processing portion and a radar signal digital processing portion. The received pulse returns are processed by quadrature phase detectors to provide outputs which are in phase and quadrature phase analog data signals representing real and imaginary parts of the Doppler frequency data. These signals are converted to corresponding digital words which are then divided into a plurality of digital Doppler frequency components by a discrete Fourier transform circuit. A buffer memory is connected to store the outputs of the discrete Fourier transform circuit.Type: GrantFiled: April 5, 1976Date of Patent: October 11, 1977Assignee: Nippon Electric Company, Ltd.Inventors: Yuichi Tomita, Takeru Irabu, Eiichi Kiuchi