Patents by Inventor Masaki Hashimoto

Masaki Hashimoto 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: 7078143
    Abstract: The object of the invention is to prevent interference fringes of images and allow precise measurement of the thickness of a layer by the optical interferometry by limiting the surface roughness of a conductive substrate. The surface roughness of the conductive substrate provided in an electrophotographic photoreceptor is such that the maximum peak-to-valley roughness height (Ry)=0.8 to 1.4 ?m, the centerline average roughness (Ra)=0.10 to 0.15 ?m, the ten-point average roughness (Rz)=0.7 to 1.3 ?m, the average peak-to-peak distance (Sm)=5 to 30 ?m, and the peak count Pc=60 to 100. In such an electrophotographic photoreceptor, light for exposure can be scattered to an appropriate extent, so that interference fringes can be prevented, and an interference pattern is formed during measurement of the thickness of the photosensitive layer by the optical interferometry so that the thickness of the layer can be measured with a high precision.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: July 18, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masaki Hashimoto, Kazushige Morita, Mikio Kakui, Yuji Tanaka, Masayuki Sakamoto
  • Publication number: 20050148632
    Abstract: The present invention relates to a therapeutic agent for irritable bowel syndrome of diarrhea type, ulcerative colitis, visceral pain or abdominal pain, which contains a compound of the following formula and which has 5-HT7 receptor antagonistic effect or an analogue thereof; and this therapeutic agent has an excellent therapeutic effect and a high safety:
    Type: Application
    Filed: February 7, 2005
    Publication date: July 7, 2005
    Inventors: Munetaka Tokumasu, Masaki Hashimoto, Tetsuo Yano, Hideki Matsumoto, Shinichi Fujita, Tetsuya Seki, Sayaka Asari, Naoyuki Fukuchi, Kazuyoshi Takahashi, Masataka Shoji
  • Publication number: 20050076398
    Abstract: The present invention provides animal model of chronic stress diseases produced by feeding lysine deficient diet to the animals and a method for producing the animal model. The effect of medicine on chronic stress diseases can be judged with the animal model. Effective compounds in preventing chronic stress diseases and/or treating patients suffering from chronic stress diseases can be screened by using the animal model.
    Type: Application
    Filed: November 30, 2004
    Publication date: April 7, 2005
    Applicant: Ajinomoto Co., Inc.
    Inventors: Kazuyoshi Takahashi, Miroslav Smriga, Masaki Hashimoto, Tetsuo Yano, Hisayuki Uneyama, Kunio Torii
  • Publication number: 20050005518
    Abstract: In order to allow a watering operation to take place in a stable manner and in an automatic manner to allow an amount of water as needed with growth of a plant, there is provided a plant cultivating method in which plant is cultivated in a plant cultivating flooring member 1 accommodated in a plant cultivating vessel P1 accommodated in a water reservoir vessel P2 reserving water W therein. In the method, the plant cultivating vessel P1 is constructed such that this vessel when accommodating the plant cultivating flooring member 1 therein can float on the water and the vessel includes a water inlet hole 2 formed in a bottom B thereof so as to allow intrusion of water from the outside to the inside thereof under the floating condition.
    Type: Application
    Filed: September 25, 2002
    Publication date: January 13, 2005
    Inventors: Kyoko Iseki, Masaki Hashimoto, Katsuro Miyagawa
  • Publication number: 20040053151
    Abstract: The object of the invention is to prevent interference fringes of images and allow precise measurement of the thickness of a layer by the optical interferometry by limiting the surface roughness of a conductive substrate. The surface roughness of the conductive substrate provided in an electrophotographic photoreceptor is such that the maximum peak-to-valley roughness height (Ry)=0.8 to 1.4 &mgr;m, the centerline average roughness (Ra)=0.10 to 0.15 &mgr;m, the ten-point average roughness (Rz)=0.7 to 1.3 &mgr;m, the average peak-to-peak distance (Sm)=5 to 30 &mgr;m, and the peak count Pc=60 to 100. In such an electrophotographic photoreceptor, light for exposure can be scattered to an appropriate extent, so that interference fringes can be prevented, and an interference pattern is formed during measurement of the thickness of the photosensitive layer by the optical interferometry so that the thickness of the layer can be measured with a high precision.
    Type: Application
    Filed: July 28, 2003
    Publication date: March 18, 2004
    Inventors: Masaki Hashimoto, Kazushige Morita, Mikio Kakui, Yuji Tanaka, Masayuki Sakamoto
  • Patent number: 6455215
    Abstract: An electrophotographic magenta toner which comprises a binder resin and a colorant comprising (a) 0.5 to 15 parts by weight of C.I. Pigment Red 57:1 and (b) 0.5 to 15 parts by weight of C.I. Pigment Red 81 or C.I. Pigment Red 122, per 100 parts by weight of the toner. A magenta developer comprising the magenta toner, and a full color image forming method using the magenta toner or developer are also disclosed.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: September 24, 2002
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masaki Hashimoto, Masanori Ichimura, Michio Take, Hiroshi Takano
  • Patent number: 6282103
    Abstract: A switching power supply wherein an inductor device is connected to the center tap of a primary winding of a transformer with a switching device provided to apply high frequency signals to the transformer concurrently with a rectified smoothed input signal applied to the primary winding concurrently by another inductor device so that the secondary winding of the transformer produces a DC output signal which is free of harmonic current and whereby the switching power supply power factor is improved.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: August 28, 2001
    Assignee: Yokogawa Electric Corporation
    Inventors: Yoshinao Naito, Koji Takada, Maki Ota, Masaki Hashimoto, Kazunori Yasuda
  • Patent number: 6155651
    Abstract: A bicycle spoke rim wheel for a WO type tubeless tire is disclosed having a rim construction which can secure an airtightness, reduce a weight of the wheel, and easily fit a tire. Particularly, a seal material within a recess can be reduced in weight, and mounting of a tire bead on the rim is facilitated by placing the tire bead into the recess.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: December 5, 2000
    Assignees: INOAC Elastomer Co. Ltd., Araya Industrial Co., Ltd., INOAC Corporation
    Inventors: Shuich Mizata, Fuyuhiro Tunekuni, Masaki Hashimoto, Yasuo Ako
  • Patent number: 5972547
    Abstract: There is provided an electrostatic charge image developing toner comprising at least a binder resin, a coloring agent, and an aromatic hydrocarbon copolymer resin, wherein, in a toner particle, the percentage of dispersed aromatic hydrocarbon copolymer resin particles having a longitudinal diameter of 2.0 .mu.m or greater among the total number of dispersed aromatic hydrocarbon copolymer is 10% or less. The toner has superior effects of excellent grindability and not melting and adhering to apparatuses, without there being any adverse effect on basic abilities of the toner such as electrostatic charge property, fixing property, color, and the like.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: October 26, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hidekazu Yaguchi, Michio Take, Masaki Hashimoto, Hiroshi Nakazawa, Jun Igarashi, Masanori Ichimura
  • Patent number: 5961886
    Abstract: A cut flower preservative slurry composition comprising a water insoluble or hardly soluble cut flower preservative component and a dispersing agent for dispersing the preservative component in water to form a slurry.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: October 5, 1999
    Assignee: Suntory Limited
    Inventors: Masaki Hashimoto, Takaharu Tanaka
  • Patent number: 5884129
    Abstract: An electrostatic-image developer which comprises: (i) a toner comprising: (a) toner particles containing carbon black in an amount of from 6 to 8% by weight based on the weight of the toner particles and having a volume-average particle diameter of from 3 to 9 .mu.m; and (b) an external additive; and (ii) a resin-coated carrier having a volume resistivity of from 10.sup.7 to 10.sup.11 .OMEGA..multidot.cm in an electric field of 10.sup.3.8 V/cm and an average particle diameter of from 30 to 60 .mu.m. Also disclosed are a process for forming a black image and a process for forming a full-color image each using the electrostatic-image developer.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: March 16, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masanori Ichimura, Michio Take, Hidekazu Yaguchi, Masaki Hashimoto, Takashi Imai, Hiroshi Takano, Masahiro Takagi, Akihiro Iizuka, Yuka Ishihara
  • Patent number: 5811117
    Abstract: A percutaneously absorbable preparation which contains norethisterone, estradiol or ester thereof, each of which is highly absorbable percutaneously, can readily be stuck to the skin, and is lowly skin irritating. It is prepared by applying a pressure-sentitive adhesive layer comprising a drug and a pressure-sensitive adhesive to one side of a support. The drug comprises at least one member selected from among norethisterone, estradiol and pharmacologically acceptable esters thereof, while the adhesive comprises a copolymer composed of 20-55 mol. % of vinylpyrrolidone and 80-45 mol. % of alkyl (C.sub.4 -C.sub.18) (meth)acrylate. The adhesive layer further contains a sorbifacient comprising 0.1-10 wt. % of at least one member selected from among dicarboxylic acids, hydroxy carboxylic acids, plyoxyethylene alkyl ethers and amide compounds and 5-40 wt. %, both based on the adhesive layer, of a higher fatty acid ester prepared from a C.sub.10 -C.sub.18 fatty acid and a C.sub.1 -C.sub.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: September 22, 1998
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masaki Hashimoto, Mitsuhito Mano, Mutsuki Amano, Takeshi Wakiya
  • Patent number: 5804351
    Abstract: A toner for electrostatic-image development which comprises toner particles comprising a colorant and a binder resin, the toner particles having a volume-average particle diameter of from 3 to 9 .mu.m and a particle size distribution satisfying the following expressions (1) and (2):D16(v)/D50(v).ltoreq.1.475-0.036.times.D50(v) (1)D50(p)/D84(p).ltoreq.1.45 (2)wherein D16(v) and D50(v) represent, in terms of absolute value, a cumulative 16% diameter (.mu.m) and a cumulative 50% diameter (.mu.m), respectively, of a cumulative volume particle diameter distribution of the toner particles depicted from the larger diameter side, and D50(p) and D84(p) represent, in terms of absolute value, a cumulative 50% diameter (.mu.m) and a cumulative 84% diameter (.mu.m), respectively, of a cumulative population particle diameter distribution of the toner particles depicted from the larger diameter side.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: September 8, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroshi Takano, Masanori Ichimura, Masaki Hashimoto, Hideyuki Akagi, Kazuya Furuta, Koji Fukushima, Masahiro Takagi, Kensaku Togao, Satoru Ishigaki, Michio Take, Yuka Ishihara
  • Patent number: 5738962
    Abstract: The toner for full-color image formation of the invention comprises a binder resin and a colorant, wherein the toner has a volume-average particle diameter of from 3.0 to 9.0 .mu.m and satisfies relationship (1) between the volume-average particle diameter and a colorant content thereof:11.0/R.ltoreq.C.ltoreq.21.5/R (1)wherein R is 1/2 of the volume-average particle diameter of the toner (.mu.m) and C is the colorant content of the toner (wt %).This toner for full-color image formation is used to conduct development in such a manner that the toner amount transferred to the receiving paper satisfies relationship (2):0.116R.ltoreq.TMA.ltoreq..ltoreq.0.0223R (2)wherein R is 1/2 of the volume-average particle diameter of the toner (.mu.m) and TMA is the weight of the toner (mg/cm.sup.2) transferred to the receiving paper in a monochromatic solid part thereof.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: April 14, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masanori Ichimura, Hiroshi Takano, Masaki Hashimoto, Hideyuki Akagi, Kazuya Furuta, Koji Fukushima
  • Patent number: 5424310
    Abstract: A substituted 1,2,4-triazine-3,5-dione derivative having the formula (I) or a salt thereof: ##STR1## wherein R represents a 5- or 6-membered heterocyclic group which may have at least one substituent selected from the group consisting of a halogen, a lower alkyl group and a halogenated lower alkyl group, and an anticoccidial drug composition containing the same as an active component.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: June 13, 1995
    Assignees: Suntory Limited, Shionogi & Co., Ltd.
    Inventors: Harukazu Fukami, Masaki Hashimoto, Shinjiro Niwata, Jun Imose, Harumoto Kawaguchi, Toshio Takahashi
  • Patent number: 5205855
    Abstract: A compound of the formula: ##STR1## wherein Q.sup.1 is CH or N; R is H or C.sub.1 -C.sub.5 alkyl; X is H, halogen, CF.sub.3, or NO.sub.2 ; Y is H or halogen; Z is --O-- or --NH--; A is ##STR2## wherein Q.sup.2, and Q.sup.3 are each CH or N; R.sup.1 and R.sup.2 are each H, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, or C.sub.2 -C.sub.6 alkoxycarbonyl; R.sup.3, R.sup.4, and R.sup.5 are each H or C.sub.1 -C.sub.5 alkyl; R.sup.6 is H, halogen, or C.sub.1 -C.sub.5 alkyl; R.sup.7, R.sup.8, R.sup.9, and R.sup.10 are each H or C.sub.1 -C.sub.5 alkyl; R.sup.11 is H, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.2 -C.sub.6 alkenyl, C.sub.6 -C.sub.10 aryl, C.sub.7 -C.sub.15 aryloxyalkyl, or C.sub.7 -C.sub.15 aralkyl; R.sup.12 and R.sup.13 are each H or C.sub.1 -C.sub.5 alkyl; R.sup.14 is C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.5 -C.sub.10 aryl, or C.sub.7 -C.sub.15 aralkyl; or R.sup.13 and R.sup.14 taken together form C.sub.3 -C.sub.4 alkylene, V.sup.1 and V.sup.
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: April 27, 1993
    Assignees: Suntory Limited, Shionogi & Co., Ltd.
    Inventors: Harukazu Fukami, Naoki Higuchi, Naoko Kawaguchi, Masaki Hashimoto, Kinya Ide, Toshio Takahashi
  • Patent number: 5198458
    Abstract: A compound of the general formula: ##STR1## wherein m is an integer of 1 to 7,n is 0 or an integer of 1 to 5,R.sup.1 is the phenyl, a substituted phenyl, the phenoxy, a substituted phenoxy or a saturated or unsaturated straight alkyl having 5 to 18 carbon atoms,R.sup.2 is hydrogen atom,R.sup.3 is hydrogen atom, a branched or unbranched alkyl having 3 to 5 carbon atoms, the phenyl, hydroxyphenyl, benzyloxyphenyl, an alkylthio having 1 to 3 carbon atoms in its alkyl moiety, amino, carboxyl, hydroxy, benzyloxy, indolyl or imidazolyl, or R.sup.2 and R.sup.3 together form a single bond between the carbon atom and the nitrogen atom, and a pharmaceutical composition containing said compound are provided. The compound is effective in curing amnesia because of its anti-prolyl endopeptidase activity.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: March 30, 1993
    Assignee: Suntory Limited
    Inventors: Naoki Higuchi, Masayuki Saitoh, Masaki Hashimoto, Harukazu Fukami, Takaharu Tanaka
  • Patent number: 5039696
    Abstract: A maleimide derivative useful as an active agent for a fungicide for agriculture and horticulture, having the formula (I): ##STR1## wherein X and Y each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, an aralkyloxy group or a trifluoromethyl group,Z represents a chlorine atom or bromine atom,and R represents a straight or branched alkyl group having 1 to 15 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkynyl group having 2 to 5 carbon atoms, an alkoxyalkyl group having 2 to 5 carbon atoms, an oxoalkyl group having 3 to 6 carbon atoms or a phenyl group or a phenyl alkyl group which may be substituted.
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: August 13, 1991
    Assignee: Suntory Limited
    Inventors: Shinjiro Niwata, Harukazu Fukami, Masaki Hashimoto, Norio Ohtsuka, Fumio Fujita
  • Patent number: 4976773
    Abstract: A compound of the formula: ##STR1## wherein Q.sup.1 is CH or N; R is H or C.sub.1 -C.sub.5 alkyl; X is H, halogen, CF.sub.3, or NO.sub.2 ; Y is H or halogen; Z is --O-- or --NH--; A is ##STR2## wherein Q.sup.2, and Q.sup.3 are each CH or N; R.sup.1 and R.sup.2 are each H, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, or C.sub.2 -C.sub.6 alkxoycarobnyl; R.sup.3, R.sup.4, and R.sup.5 are each H or C.sub.1 -C.sub.5 alkyl; R.sup.6 is H, halogen, or C.sub.1 -C.sub.5 alkyl; R.sup.7, R.sup.8, R.sup.9, and R.sup.10 are each H or C.sub.1 -C.sub.5 alkyl; R.sup.11 is H, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.2 -C.sub.6 alkenyl, C.sub.6 -C.sub.10 aryl, C.sub.7 -C.sub.15 aryloxyalkyl, or C.sub.7 -C.sub.15 aralkyl; R.sup.12 and R.sup.13 are each H or C.sub.1 -C.sub.5 alkyl; R.sup.14 is C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.5 -C.sub.10 aryl, or C.sub.7 -C.sub.15 aralkyl; or R.sup.13 and R.sup.14 taken together form C.sub.3 -C.sub.4 alkylene, V.sup.1 and V.sup.2 are each H, halogen, NO.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: December 11, 1990
    Assignee: Suntory Limited
    Inventors: Harukazu Fukami, Naoki Higuchi, Naoko Kawaguchi, Masaki Hashimoto, Kinya Ide, Toshio Takahashi
  • Patent number: 4945104
    Abstract: A maleimide derivative having the formula (I): ##STR1## wherein R.sub.1 represents a lower alkyl group having 1 to 4 carbon atoms, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independently represent a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms, a phenyl group which may be substituted, or an aralkyl group having 7 to 10 carbon atoms, and X.sub.1 and X.sub.2 independently represent a hydrogen atom or a halogen atom, and a production process thereof as well as a agricultural and horticultural fungicide containing, as an active ingredient, the maleimide derivative.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: July 31, 1990
    Assignee: Suntory Limited
    Inventors: Harukazu Fukami, Masaki Hashimoto, Shinjiro Niwata, Norio Ohtsuka, Fumio Fujita