Patents by Inventor Masaaki Yamamura
Masaaki Yamamura 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: 10895829Abstract: An image forming apparatus includes an image holding unit that holds an image that is formed of a developer, the image being intended to be transferred onto a medium, and an image that is not intended to be transferred onto a medium, a transfer unit that transfers the image that is intended to be transferred onto a medium onto a medium, and a forming unit that forms, upon receiving a print instruction to form the image that is intended to be transferred onto a medium onto the image holding unit, the image that is not intended to be transferred onto a medium at a position on the image holding unit where the image that is intended to be transferred onto a medium is to be formed.Type: GrantFiled: April 22, 2020Date of Patent: January 19, 2021Assignee: FUJI XEROX CO., LTD.Inventors: Jun Kuwabara, Yoshiyuki Tominaga, Masaaki Yamamura
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Patent number: 6211141Abstract: A high-density powdered detergent composition which has a bulk density of 0.6 to 1.2 g/ml and which comprises 0.5 to 30% by weight of (a) a glycine-N,N-diacetic acid derivative, 5 to 45% by weight of (b) a nonionic surfactant having an HLB value of 10.5 to 15.0, 0.5 to 18% by weight of (c) an anionic surfactant and 1 to 30% by weight of (d) an aluminosilicate, each percentage being based on the total weight of the composition, and the weight ratio of the component (b) to the component (c) lying between 90:1 and 60:40. This composition contains both a glycine-N,N-diacetic acid derivative which is a builder excellent in biodegradability and sequestering power and an inorganic builder such as zeolite or crystalline silicate, and exhibits high detergency.Type: GrantFiled: July 13, 1998Date of Patent: April 3, 2001Assignee: Kao CorporationInventors: Shu Yamaguchi, Hiromitsu Hayashi, Masaki Tsumadori, Masaaki Yamamura, Noboru Moriyama
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Patent number: 6174852Abstract: A high-density powdered detergent composition which has a bulk density of 0.6 to 1.2 g/ml and which comprises 0.5 to 30% by weight of (a) a glycine-N,N-diacetic acid derivative, 20 to 50% by weight of (b) an anionic surfactant, 0.5 to 5% by weight of (c) an ether-type nonionic surfactant having an HLB value of 10.5 to 15.0 and 1 to 30% by weight of (d) an aluminosilcate, each percentage being based on the total weight of the composition, and the component (c) being contained in an amount of 0.5 to 10.0 parts by weight per 100 parts by weight of the component (b). This composition contains both a glycine-N,N-diacetic acid derivative which is a builder excellent in biodegradability and sequestering power and an inorganic builder such as zeolite or crystalline silicate, and exhibits high detergency.Type: GrantFiled: July 22, 1998Date of Patent: January 16, 2001Assignee: Kao CorporationInventors: Hiromitsu Hayashi, Toshiharu Noguchi, Masaki Tsumadori, Masaaki Yamamura, Noboru Moriyama
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Patent number: 5817181Abstract: A process for producing a light-receiving member comprising a substrate and provided thereon a blocking layer and a photoconductive layer each comprised of a non-monocrystalline material is disclosed in which the blocking layer is comprised of a non-monocrystalline material comprising silicon atoms as matrix and at least one kind of atoms selected from the group consisting of carbon atoms, oxygen atoms and nitrogen atoms, the process comprising forming the blocking layer and the photoconductive layer by plasma CVD using glow discharge decomposition of a starting material gas caused by applying to the starting material gas an electromagnetic wave with a frequency of from 20 MHz to 450 MHz.Type: GrantFiled: July 24, 1995Date of Patent: October 6, 1998Assignee: Canon Kabushiki KaishaInventors: Ryuji Okamura, Kazuyoshi Akiyama, Hitoshi Murayama, Koji Hitsuishi, Satoshi Kojima, Hirokazu Ohtoshi, Masaaki Yamamura
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Patent number: 5582944Abstract: An electrophotographic light-receiving member comprises a conductive substrate and a light-receiving layer having a photoconductive layer and a surface layer which are successively layered on the conductive substrate, wherein;the photoconductive layer is comprised of a non-monocrystalline material mainly composed of a silicon atom and containing at least a carbon atom, a hydrogen atom and a fluorine atom;the surface layer is mainly composed of a silicon atom and contains a carbon atom, a hydrogen atom and a halogen atom;the carbon atom in the photoconductive layer is in a non-uniform content in the layer thickness direction and in a higher content on the side of the conductive substrate and in a lower content on the side of the surface layer at every point in the layer thickness direction, and is in a content of from 0.Type: GrantFiled: June 22, 1994Date of Patent: December 10, 1996Assignee: Canon Kabushiki KaishaInventors: Masaaki Yamamura, Toshiyasu Shirasuna, Junichiro Hashizume, Kazuyoshi Akiyama, Shigeru Shirai
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Patent number: 5580481Abstract: To provide an aqueous fabric softener composition, which is excellent in softening performance, elasticity and storage stability, and a quaternary ammonium salt which is useful as a softening base of this composition and nondetrimental to the natural environment because of its excellent biodegradability, and a process for the preparation of this salt.The aqueous fabric softener composition of the present invention comprises from 8 to 40% by weight of a quaternary ammonium salt represented by the following formula (I), a quaternary ammonium salt represented by the following formula (II) or a mixture thereof, and water: ##STR1## wherein R.sup.1 and R.sup.2 represent each a C.sub.1-4 alkyl group, etc.; R.sup.3 and R.sup.4 represent each a C.sub.7-35 alkyl group, etc.; and X.sup.- represents an anion group; and ##STR2## wherein R.sup.5 and R.sup.6 represent each a C.sub.1-4 group, etc.; R.sup.7 and R.sup.8 represent each a C.sub.1-5 alkylene group, etc.; R.sup.9 and R.sup.10 represent each a C.sub.Type: GrantFiled: March 24, 1995Date of Patent: December 3, 1996Assignee: Kao CorporationInventors: Yushi Sakata, Junichi Inokoshi, Tohru Katoh, Osamu Tachizawa, Uichiro Nishimoto, Yasuki Ohtawa, Masaaki Yamamura
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Patent number: 5530555Abstract: A method of, and an apparatus for, recording halftone dots on a photosensitive film by selecting halftone dots having different minimum repeating units in response to respective original image components. SPMs (103a to 103d) previously store screen pattern (SP) signals having different minimum repeating units, while address generation controllers (AGCp to AGCs) previously store address signals corresponding to the respective SP signals. Pattern selection signals (PPS) are inputted in response to respective original image components and the address signals are selected in correspondence thereto and inputted in the SPMs (103a to 103d), thereby reading the SP signals. Comparators (104a to 104d) compare pixel signals (DSa to DSd) expressing density levels of respective pixels forming a total image with the selected SP signals, to output halftone dot signals (DOTa to DOTd) in response to the result of this comparison.Type: GrantFiled: August 11, 1993Date of Patent: June 25, 1996Assignee: Dainippon Screen Mfg. Co., Ltd.Inventors: Kazutaka Taaka, Masaaki Yamamura
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Patent number: 5476597Abstract: To provide an aqueous fabric softener composition, which is excellent in softening performance, elasticity and storage stability, and a quaternary ammonium salt which is useful as a softening base of this composition and nondetrimental to the natural environment because of its excellent biodegradability and a process for the preparation of this salt.The aqueous fabric softener composition of the present invention comprises from 3 to 40% by weight of a quaternary ammonium salt represented by the following formula (I), and water: ##STR1## wherein R.sup.1 and R.sup.2 represent each a C.sub.1-4 alkyl group, etc.; R.sup.3 and R.sup.4 represent each a C.sub.7-35 alkyl group, etc.; and X.sup.- represents an anion group.Type: GrantFiled: September 8, 1994Date of Patent: December 19, 1995Assignee: Kao CorporationInventors: Yushi Sakata, Junichi Inokoshi, Tohru Katoh, Osamu Tachizawa, Uichiro Nishimoto, Yasuki Ohtawa, Masaaki Yamamura
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Patent number: 5455138Abstract: A process for producing a light-receiving member comprising a substrate and provided thereon a blocking layer and a photoconductive layer each comprised of a non-monocrystalline material is disclosed in which the blocking layer is comprised of a non-monocrystalline material comprising silicon atoms as matrix and at least one kind of atoms selected from the group consisting of carbon atoms, oxygen atoms and nitrogen atoms, the process comprising forming the blocking layer and the photoconductive layer by plasma CVD using glow discharge decomposition of a starting material gas caused by applying to the starting material gas an electromagnetic wave with a frequency of from 20 MHz to 450 MHz.Type: GrantFiled: October 21, 1993Date of Patent: October 3, 1995Assignee: Canon Kabushiki KaishaInventors: Ryuji Okamura, Kazuyoshi Akiyama, Hitoshi Murayama, Koji Hitsuishi, Satoshi Kojima, Hirokazu Ohtoshi, Masaaki Yamamura
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Patent number: 5407768Abstract: An electrophotographic light-receiving member comprising a conductive substrate 101 and laminated thereto a non-monocrystalline material photoconductive layer 102 and a surface layer 103. The photoconductive layer 102 is mainly composed of silicon atoms and contains at least carbon atoms and hydrogen atoms. The percentage of carbon atoms having a carbon-carbon bond in the photoconductive layer is controlled to be not more than 60% based on the whole carbon atoms contained therein, and, in an instance in which a blocking layer 104 is provided between the conductive substrate 101 and the photoconductive layer 102, the percentage of carbon atoms having a carbon-carbon bond in the blocking layer is also controlled. This makes it possible to prevent clusters of carbon atoms from being formed in the photoconductive layer or blocking layer.Type: GrantFiled: April 23, 1993Date of Patent: April 18, 1995Assignee: Canon Kabushiki KaishaInventors: Kazuyoshi Akiyama, Masaaki Yamamura, Ryuji Okamura, Koji Hitsuishi
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Patent number: 5282983Abstract: An aqueous fabric softener composition is disclosed, which comprises water and, as a softener new material, an ammonium salt obtained by neutralizing the following Compound (A):(A) a di-long chain type tertiary amine compound containing one ##STR1## group in which R represents an alkyl or alkenyl group containing from 11 to 21 carbon atom, one CONH group and one alkyl or alkenyl group containing from 11 to 22 carbon atomswith the following Compound (B):an inorganic acid or an organic acid containing from 1 to 6 carbon atoms,or quaternizing Compound (A), or a mixture of the ammonium salt obtained by neutralizing Compound (A) with Compound (B) and the ammonium salt obtained by quaternizing Compound (A). An ammonium salt obtained by neutralizing or quaternizing Compound (A) is also disclosed. The fabric softener composition of the present invention imparts the sufficient softness, the antistaticity and the resiliency (fluffy feeling) to clothes of various fibers.Type: GrantFiled: February 21, 1992Date of Patent: February 1, 1994Assignee: Kao CorporationInventors: Masaaki Yamamura, Junichi Inokoshi, Kazutaka Shiratsuchi, Toru Hayase, Uichiro Nishimoto, Koshiro Sotoya, Tohru Katoh, Yoshifumi Nishimoto, Osamu Tachizawa
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Patent number: 5242607Abstract: A softener composition comprises (a) 7 to 30 wt. % of a neutralization product with an inorganic or organic acid having not more than 6 carbon atoms of one selected from the group consisting of (a-1) an amine compound having 2 or 3 hydrocarbon groups each having 11 to 22 carbon atoms in its molecule and (a-2) an ion complex compound formed from 1 mole of a polyamide having a hydrocarbon group having 11 to 22 carbon atoms and 2 to 5 nitrogen atoms and 1 mole of an aliphatic acid having 12 to 22 carbon atoms and (b) 0.2 to 5 wt. % of one or more polyethers, each being an adduct of an alkylene oxide including ethylene oxide to a compound having 3 or more active hydrogens, which contains 50 wt. % or more of the polyoxyethylene units, having a molecular weight of 5,000 to 2,000,000. It is of the concentrated type and provides clothing with an improved softness and anti-static property.Type: GrantFiled: September 30, 1991Date of Patent: September 7, 1993Assignee: Kao CorporationInventors: Masaaki Yamamura, Junichi Inokoshi, Kazutaka Shiratsuchi, Toru Hayase
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Patent number: 5154838Abstract: A liquid softener composition comprises water and an amidoamine compound (a) obtained by condensation reaction of a di- or triamine of the general formula (I) with a fatty acid of the general formula (II), or a neutral salt of the amidoamine compound with an inorganic or organic acid:R.sup.1 NH(C.sub.m H.sub.2m NH).sub.n H (I) ##STR1## wherein R.sup.1 represents a straight chain or branched, saturated or unsaturated hydrocarbon group having 8 to 24 carbon atoms, R.sup.2 represents a straight chain or branched, saturated or unsaturated hydrocarbon group having 7 to 23 carbon atoms, m represents 2 or 3, and n represents 1 or 2.Type: GrantFiled: May 9, 1991Date of Patent: October 13, 1992Assignee: Kao CorporationInventors: Masaaki Yamamura, Junichi Inokoshi, Kazutaka Shiratsuchi
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Patent number: 5059344Abstract: A bleaching composition comprises a peroxide and an amphoteric organic per acid precursor. In particular the amphoteric organic per acid precursor is a quaternary ammonium salt has the following formula in which Z is sulfonate or carboxylate and is a new compound.Type: GrantFiled: March 20, 1990Date of Patent: October 22, 1991Assignee: Kao CorporationInventors: Muneo Aoyagi, Kazuhiro Takanashi, Hiroyuki Araki, Moriyasu Murata, Kohshiro Sotoya, Nobuyuki Ogura, Masaaki Yamamura
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Patent number: 5023003Abstract: A softener composition comprising a quaternary ammonium salt having two hydrocarbon radicals having 12-22 carbon atoms and one unsaturated bond; the stereoisomeric structure of the above salt includes both the cis-isomer and the trans-isomer with the cis-isomer/trans-isomer ratio being in the range of from 25/75-90/10.Type: GrantFiled: November 17, 1989Date of Patent: June 11, 1991Assignee: Kao CorporationInventors: Masaaki Yamamura, Kazuhiko Okabe, Kohshiro Sotoya, Moriyasu Murata
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Patent number: 4978770Abstract: A bleaching composition comprises (a) a peroxide and (b) an organic peracid precursor having at least one group selected from (b-1) and (b-2) and then further comprises a detergent component(s).Type: GrantFiled: March 30, 1990Date of Patent: December 18, 1990Assignee: Kao CorporationInventors: Muneo Aoyagi, Kazuhiro Takanashi, Masaaki Yamamura, Moriyasu Murata, Hiroyuki Yamada, Hiroyuki Araki, Takanori Fukumoto
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Patent number: 4972799Abstract: In a microwave plasma chemical vapor deposition apparatus which comprises a substantially enclosed deposition chamber, a means for supporting a substrate on which a functional deposited film is to be formed, a means for supplying raw material gases, a means for evacuating the inside of said deposition chamber and a means for generating microwave discharge plasmas in said deposition chamber which includes a waveguide extending from a microwave power source and a microwave introducing window through which a microwave energy is to be introduced into said deposition chamber, the improvement characterized in that said apparatus is provided with a holding member capable of holding said microwave introducing window and said substrate and capable of sealing said deposition chamber in a air-tight state upon film-formation and said apparatus is provided with a means for transporting said holding member under vacuum condition.Type: GrantFiled: January 25, 1990Date of Patent: November 27, 1990Assignee: Canon Kabushiki KaishaInventors: Teruo Misumi, Masaaki Yamamura, Minoru Kato
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Patent number: 4937008Abstract: A concentrated softening agent for use in clothings comprising, as the essential ingredient:(a) from 10 to 20 by weight of one or more of quarternary ammonium salts,(b) from 0.5 to 3% by weight of an alkylene oxide addition 10-50M product containing, as an essential ingredient, ethylene oxide of an unsaturated or branched alcohol with 12 to 24 carbon atoms, or an unsaturated or branched alliphatic acid with 12 to 24 carbon atoms,(c) from 0.5 to 2.0% by weight of a monohydric alcohol with 1 to 3 carbon atoms,(d) from 3 to 15% by weight of a di- or tri-valent polyol with 2 to 3 carbon atoms,(e) from 0.05 to 0.4% by weight of an inorganic salt, and(f) from 0.Type: GrantFiled: February 2, 1989Date of Patent: June 26, 1990Assignee: Kao CorporationInventors: Masaaki Yamamura, Junichi Inokoshi, Tetuo Ito, Kazumitsu Furuta
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Patent number: 4933103Abstract: A bleaching composition comprises a peroxide and an amphoteric organic per acid precursor. In particular the amphoteric organic per acid precursor is a quaternary ammonium salt has the following formula in which Z is sulfonate or carboxylate and is a new compound.Type: GrantFiled: March 11, 1988Date of Patent: June 12, 1990Assignee: Kao CorporationInventors: Muneo Aoyagi, Kazuhiro Takanashi, Hiroyuki Araki, Moriyasu Murata, Kohshiro Sotoya, Nobuyuki Ogura, Masaaki Yamamura
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Patent number: 4922332Abstract: An original image including a line area and image areas separated from each other across the line area is subjected to a thinning process, whereby an iamge (10a) including a thinned line area (1a) and enlarged image areas (2a, 3a, 4a) is obtained. The enlarged image areas are sequentially expanded by a width of the thinned line area to form respective tint areas, and tint pattern data expressing respective shapes of the tint areas with prescribed colors are obtained.Type: GrantFiled: January 13, 1989Date of Patent: May 1, 1990Assignee: Dainippon Screen Mfg. Co., Ltd.Inventors: Hisayuki Taniguchi, Masaaki Yamamura