Patents by Inventor Yasuki Mori
Yasuki Mori 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: 20080012840Abstract: A gradation voltage adjustment section for increasing a positive gradation voltage VHX of an X-th gradation and a negative gradation voltage of the X-th gradation so that the increment corresponds to a charge pull-in amount ?V is provided in a gradation voltage generation circuit of each source driver. In at least one embodiment, a center value between the positive and negative gradation voltages is adjusted for each driver in accordance with a slant of the charge pull-in amount ?V in a direction of a gate signal line, thereby suppressing a flicker without varying a gradation characteristic. Further, a center value between the positive and negative gradation voltages is adjusted for each horizontal line or for every plural lines in a single frame in accordance with a horizontal direction deviation and a vertical direction deviation of the charge pull-in amount ?V in a transfer block, thereby suppressing a flicker without varying a gradation characteristic.Type: ApplicationFiled: January 30, 2006Publication date: January 17, 2008Inventors: Hiroyuki Higashino, Tetsuya Umehara, Yasuki Mori
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Publication number: 20050146646Abstract: A liquid crystal display device includes a group of first signal lines ( . . . , Sm?1, Sm, Sm+1, . . . ) arranged in parallel, a group of second signal lines ( . . . , Gn?1, Gn, Gn+1, . . . ) and a group of auxiliary capacity wirings ( . . . , Csn-1, Csn, Csn+1, . . . ) alternately arranged one by one in parallel so as to intersect with the group of the first signal lines, a plurality of pixel electrodes arranged in a pixel region, an auxiliary electrode connected to each of the pixel electrodes, and a TFT element corresponding to each of the pixel electrodes. The auxiliary electrode has a portion forming a capacitor by overlapping with auxiliary capacity wiring Csn and a portion forming a capacitor by overlapping with second signal line Gn?1.Type: ApplicationFiled: May 14, 2004Publication date: July 7, 2005Inventors: Masakazu Takeuchi, Takashi Morimoto, Yasuki Mori
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Patent number: 5276385Abstract: The invention provides a high-pressure discharge lamp incorporating an outer envelope storing a pair of electric terminals a plurality of arc tubes which are respectively stored in this outer envelope and electrically connected in parallel, and a plurality of ignition aids available for assisting operating of these arc tubes, where these ignition aids are provided for each of these arc tubes and contain potentials different from each other. In addition, the invention also provides a lighting system for operating the high-pressure discharge lamp.Type: GrantFiled: September 25, 1991Date of Patent: January 4, 1994Assignee: Toshiba Lighting & Technology CorporationInventors: Akira Itoh, Kazuyoshi Okamura, Kazuiki Uchida, Mitsuho Kotabe, Hirochika Shiohama, Kimihito Sato, Yasuki Mori, Katsusuke Uchino
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Patent number: 5138218Abstract: A metal vapor discharge lamp has a small arc tube of a single end type. The maximum and minimum thicknesses of the wall of the arc tube and the ratio of the minimum thickness to the maximum thickness are set to the values in predetermined ranges. The set thicknesses prevents breakage of the arc tube and deterioration of the lamp characteristics.Type: GrantFiled: January 8, 1991Date of Patent: August 11, 1992Assignee: Toshiba Lighting and Technology CorporationInventors: Kazuo Honda, Atsushi Matsuura, Hisanori Sano, Yasuki Mori
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Patent number: 5136208Abstract: A prescribed amount of tin halide is sealed in the arc tube of a metal halide lamp wherein a given amount of metal halide including a target amount of halogen and at least a predetermined amount of rare earth metal is sealed in the arc tube thereof to maintain a high lumen maintenance factor for an extended operation period. The prescribed amount of tin halide is preferably within 4.6.about.234 mol % of the predetermined amount of rare earth metal.Type: GrantFiled: February 7, 1990Date of Patent: August 4, 1992Assignee: Toshiba Lighting & Technology CorporationInventors: Hiromichi Kawashima, Kazuo Honda, Youichiro Mitsuyuki, Yasuki Mori, Masakazu Shibuya, Mamoru Furuya
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Patent number: 4988918Abstract: Arc discharged by a short arc discharge lamp can be made so small in diameter as to appear like a spot. Therefore, the illuminance efficiency of the short arc discharge lamp can be made high and its brightness can also be enhanced.Type: GrantFiled: June 21, 1989Date of Patent: January 29, 1991Assignee: Toshiba Lighting and Technology CorporationInventors: Yasuki Mori, Yasuhiro Iwafuji, Yoichiro Mitsuyuki, Tadatoshi Higashi
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Patent number: 4978596Abstract: The present invention provides an electrophotographic toner, particularly with a good transferability and a good flowability, which comprises a binder resin and a coloring agent, the binder resin containing a lactone-modified epoxy resin, obtained by subjecting all or a portion of secondary hydroxyl groups of epoxy compounds having hydroxyl groups in the molecules to ring opening polymerization of lactone.The present invention further provides an electrophotographic toner with a good transferability, a good flowability and a good offset resistance and also with a fixability of transferred images, which comprises a binder resin and a coloring aent, the binder resin containing:(1) a lactone-modified epoxy resin, obtained by subjecting all or a portion of secondary hydroxyl groups of epoxy compounds having hydroxy groups in the molecules to ring opening polymerization of lactone,(2) styrene-butadiene rubber, and(3) polyester resin.Type: GrantFiled: March 17, 1986Date of Patent: December 18, 1990Assignee: Hitachi, Ltd.Inventors: Ryuichi Shimizu, Tsuneaki Kawanishi, Shigeo Suzuki, Shigeo Hosaka, Yasuki Mori, Toshikazu Narahara
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Patent number: 4929869Abstract: In order to maintain an ultraviolet-ray intensity of a metal halide lamp for a long period, the present invention provides a high intensity discharge lamp comprising an arc tube having electrodes at its both ends, and a rare gas, mercury, iron, a halogen and silver enclosed in the tube, wherein a gram atom ratio of silver to iron is 0.05 to 0.2. The present invention also provides a high intensity discharge lamp comprising an arc tube having electrodes at its both ends, and a rare gas, mecury, iron, a halogen, tin and silver enclosed in the tube, wherein ([Fe]+[Sn])/[J]<0.5 and (2[Fe]+2[Sn]+[Ag])/[J]>1, where [Fe], [Sn], ]Ag] and [J] are, respectively, gram atoms of iron, tin, silver and the halogen.Type: GrantFiled: November 10, 1988Date of Patent: May 29, 1990Assignee: Kabushiki Kaisha ToshibaInventors: Akihiro Yonezawa, Hiroki Sasaki, Yoichiro Mitsuyuki, Yasuki Mori, Toshihiko Ishigami
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Patent number: 4749905Abstract: A high pressure discharge lamp includes a glass enclosure defining a hermetically sealed discharge space filled with an ionizable gas. A pair of electrodes extend into the discharge space, each electrode having a connection end and a discharge end, between which electrodes, in the operating condition of the lamp, a discharge takes place. A pair of holding portions on opposite sides of the glass enclosure and hold the respective connection ends of the electrodes. Metal lead foils connected to the connection ends are sealed in the holding portions. One or both of the connection ends is shaped, e.g., as a conical frustrum or as a wedge, such that the thickness of its inner end is reduced with respect to the thickness of its outward end. The joining portion of the glass enclosure is internally necked at a position adjacent the reduced thickness portion of the connection end.Type: GrantFiled: November 14, 1986Date of Patent: June 7, 1988Assignee: Kabushiki Kaisha ToshibaInventors: Yasuki Mori, Masakazu Shibuya, Yoshiyuki Tokuda
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Patent number: 4742277Abstract: A pulse generating apparatus includes a base current supply section for generating a constant DC current having a first prescribed current level for turning on a xenon lamp, and a pulse current section for adding a pulse current having a second current level greater than the first current level and a prescribed pulse duration within a prescribed repetition period to the constant DC current. The base current supply section and pulse current section should satisfy the following equations:1.4.ltoreq.Imax/Imini.ltoreq.60.2.ltoreq.t/T.ltoreq.0.7T.ltoreq.1/40Where Imax is the sum of the first and the second prescribed current levels, Imini is the first prescribed current level, T is the prescribed repetition period, and t is the prescribed pulse duration.When the pulse current added to the DC current is supplied to a xenon lamp, the xenon lamp outputs a strong light during the pulse duration of the pulse current, and a feeble light during the absence of the pulse current.Type: GrantFiled: July 29, 1987Date of Patent: May 3, 1988Assignee: Kabushiki Kaisha ToshibaInventors: Masakazu Shibuya, Yasuki Mori, Yoshiyuki Tokuda, Yoichiro Mitsuyuki, Akihiro Kamiya
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Patent number: 4734347Abstract: An electrophotographic plate having a protective layer comprising a fluorine-containing copolymer having monomer units of a fluoroolefin, and an alkyl vinyl ether and/or cycloalkyl vinyl ether on an organic photoconductive layer formed on the electroconductive layer is excellent in electrophotographic properties and durability.Type: GrantFiled: October 8, 1986Date of Patent: March 29, 1988Assignee: Hitachi Chemical Co., Ltd.Inventors: Keiichi Endo, Akira Kageyama, Yasuo Katsuya, Yasuki Mori
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Patent number: 4690858Abstract: A thermal transfer recording sheet comprising a substrate and ink layer formed thereon containing one or more sublimable dyes and a high-molecular-weight polyamide obtained from dimer acids as a binder is good in adherence of the ink layer to the substrate, and thermal transfer properties to give clear color hard copies.Type: GrantFiled: February 13, 1986Date of Patent: September 1, 1987Assignees: Hitachi, Ltd., Nitto Electric Industrial Co., Ltd.Inventors: Hiroyuki Oka, Shinichi Akasaka, Shuichi Ohara, Shintaroo Hattori, Yasuki Mori, Toshikazu Narahara, Hiroshi Matsumoto
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Patent number: 4680058Abstract: A dark or black print article is ink-jet printed with a white ink composition comprising at least a white pigment having a particle size of less than 3 .mu.m, a solvent and a binder resin with a good print stability. The white ink composition has a good dispersion stability, a good redispersability, and no nozzle clogging.Type: GrantFiled: March 12, 1985Date of Patent: July 14, 1987Assignees: Hitachi, Ltd., Dainichiseika Color & Chemicals MFG. Co., Ltd.Inventors: Ryuichi Shimizu, Yasuki Mori, Tsuneaki Kawanishi, Osamu Isoo, Hirosada Morishita, Tooru Hosoda
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Patent number: 4640880Abstract: In a method of developing triboelectric magnetic toner, an electrostatic latent image is formed on a substance, the latent image is developed by a magnetic brush method using a ferrite carrier of semiconductivity and a triboelectric magnetic tonor, and the developed toner image is transferred to a transfer member and fixed.By adding the semiconductive ferrite carrier, a lump of tonor is broken with a mechanical force of the carrier so as to increase the flowability of the tonor and to prevent the agglomeration of the tonor due to dielectric charging.Type: GrantFiled: October 24, 1984Date of Patent: February 3, 1987Assignees: Hitachi Metals Co., Ltd., Hitachi, Ltd.Inventors: Tsuneaki Kawanishi, Yasuki Mori, Koji Noguchi, Tsutomu Iimura
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Patent number: 4634927Abstract: This invention provides a small metal halide lamp which has a power input of 100 W or less, provided with: an arc tube having a pair of electrodes spaced apart from each other and containing a rare gas, mercury, sodium halide and scandium halide therein; and an envelope for housing the arc tube. The mixing ratio of sodium halide to scandium halide based on weight is 3:1 to 10:1, and the total content of the sodium halide and the scandium halide is 10 to 40 mg per unit volume (cc) of the arc tube. At least one phospor selected from the group consisting of a manganese-activated magnesium fluorogermanate phosphor and a cerium-activated yttrium aluminate phosphor is applied to the inner surface of the envelope. In addition, a green-emitting phosphor is preferably coated on the inner surface of the envelope.Type: GrantFiled: December 14, 1982Date of Patent: January 6, 1987Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Yasuki Mori, Akihiro Kamiya
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Patent number: 4619879Abstract: The disclosure is concerned with a photoconductive member useful for electrophotography wherein a charge generating layer containing a new metal-free phthalocyanine and a charge transport layer containing a nonionic compound of styrylic or oxazol dye base. The photosensitive member exhibits a high sensitivity to light having a long wavelength and therefore, it is properly used as photosensitive member for printers using semiconductor lasers.Type: GrantFiled: January 28, 1985Date of Patent: October 28, 1986Assignee: Hitachi, Ltd.Inventors: Atsushi Kakuta, Hiroyuki Oka, Shigeo Suzuki, Kotaro Araya, Yasuki Mori, Hirosada Morishita
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Patent number: 4507374Abstract: The disclosure is concerned with an electrophotographic recording medium having a layer of a photoconductive material containing at least one member selected from the group consisting of .tau., .tau.', .eta., and/or .eta.' form metal free phthalocyanine, the layer being formed on an electroconductive supporter.The recording medium of this invention is characterized in that the recording medium exhibits high sensitivity to longer wavelength light.Type: GrantFiled: April 15, 1983Date of Patent: March 26, 1985Assignees: Hitachi, Ltd., Toyo Ink Manufacturing Co., Ltd.Inventors: Atsushi Kakuta, Hiroyuki Oka, Shigeo Suzuki, Kotaro Araya, Yasuki Mori, Hirosada Morishita, Shigemasa Takano, Manabu Sawada, Isao Kumano
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Patent number: 4435492Abstract: In a complex type electrophotographic plate comprising an electroconductive support, superposed thereon a charge generating material (CGL) layer and a charge transport material layer superposed on the CGL layer when there is used as said charge transport material at least one compound of the formula:X--(CH.dbd.CH).sub.n --CH.dbd.Ywherein X is a heterocyclic group of the formula: ##STR1## Y is a heterocyclic group of the formula: ##STR2## these heterocyclic groups may be substituted by one or more lower alkyl groups, halogen atoms, or phenyl groups; Z is an oxygen, sulfur or selenium atom; R is an alkyl group having 1 to 7 carbon atoms; n is an integer of 1 or 2; and one hydrogen atom in the group of the formula --(CH.dbd.CH).sub.n -- may be substituted by an alkyl group having 1 to 4 carbon atoms, a halogen atom, a phenyl group, a styryl group or a group of the formula: ##STR3## electrophotographic characteristics such as light sensitivity, dark decay characteristics, repetition characteristics, etc.Type: GrantFiled: June 1, 1982Date of Patent: March 6, 1984Assignee: Hitachi, Ltd.Inventors: Shigeo Suzuki, Atsushi Kakuta, Yasuki Mori, Hirosada Morishita
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Patent number: 4430404Abstract: An electrophotographic photosensitive material having a long lifetime can be provided by forming an amorphous silicon layer having a thickness of 0.01-0.08 .mu.m on the photoconductive layer on the electrically conductive substrate in the said material without changing the characteristics of the photoconductive layer.Type: GrantFiled: April 26, 1982Date of Patent: February 7, 1984Assignees: Hitachi, Ltd., Hitachi Koki Co., Ltd.Inventors: Akira Hosoya, Kunihiro Tamahashi, Shigeharu Onuma, Atsushi Kakuta, Yasuki Mori, Katsuhito Suzuki, Hirosada Morishita
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Patent number: D396051Type: GrantFiled: April 29, 1997Date of Patent: July 14, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Yasuki Mori