Patents by Inventor Yoshimasa Hattori
Yoshimasa Hattori 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: 10143379Abstract: A fluorescence detection device comprises: a plurality of light sources that apply an excitation light from an outside of a living body toward fluorescent dye previously injected into the living body; and a plurality of detectors that detect fluorescence emitted from the fluorescent dye by the excitation light, and output the detected fluorescence as an electric signal. The plurality of light sources and the plurality of detectors are arranged in at least one line. At least one detector is placed between two light sources, and at least one light source is placed between two detectors.Type: GrantFiled: February 18, 2013Date of Patent: December 4, 2018Assignees: NATIONAL UNIVERSITY CORPORATION HAMAMATSU UNIVERSITY SCHOOL OF MEDICINE, HAMAMATSU PHOTONICS K.K.Inventors: Naoki Unno, Yoshimasa Hattori, Mitsuharu Miwa
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Publication number: 20150073273Abstract: A fluorescence detection device comprises: a plurality of light sources that apply an excitation light from an outside of a living body toward fluorescent dye previously injected into the living body; and a plurality of detectors that detect fluorescence emitted from the fluorescent dye by the excitation light, and output the detected fluorescence as an electric signal. The plurality of light sources and the plurality of detectors are arranged in at least one line. At least one detector is placed between two light sources, and at least one light source is placed between two detectors.Type: ApplicationFiled: February 18, 2013Publication date: March 12, 2015Applicants: NATIONAL UNIVERSITY CORPORATION HAMAMATSU UNIVERSITY SCHOOL OF MEDICINE, HAMAMATSU PHOTONICS K.K.Inventors: Naoki Unno, Yoshimasa Hattori, Mitsuharu Miwa
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Patent number: 6096694Abstract: A perfluoropolyether liquid lubricant is provided which has an amine functional group at at least one of ends of a chain molecule. A magnetic recording medium using the lubricant assures increased bonding force between a carbon protective layer and a lubricant layer.Type: GrantFiled: October 9, 1998Date of Patent: August 1, 2000Assignee: Fuji Electric Co., Ltd.Inventors: Youichi Tei, Shinji Shirai, Yoshimasa Hattori
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Patent number: 5876889Abstract: An electrophotographic photoconductor has a conductive substrate and a photosensitive layer. The photosensitive layer is laminated on the conductive substrate and includes at least phthalocyanine compound as a photoconductive material. In the photosensitive layer, the content of o-phthalonitrile polymer except the phthalocyanine compound is in a range of 100 nmol to 200 mmol with respect to 1 mol of the phthalocyanine compound. Thus, the electrophotographic photoconductor has an excellent surface-charge retention.Type: GrantFiled: October 28, 1997Date of Patent: March 2, 1999Assignee: Fuji Electric Co., Ltd.Inventors: Yoichi Nakamura, Kazumi Egota, Koji Kawaguchi, Yoshimasa Hattori
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Patent number: 5686212Abstract: A photoconductor for electrophotography includes a distyryl compound of the general formula (I) as a charge generation material and a bisazo compound of the general formula (II) as a charge transport material.Type: GrantFiled: October 20, 1995Date of Patent: November 11, 1997Assignee: Fuji Electric Co., Ltd.Inventors: Yoshimasa Tomiuchi, Masami Kuroda, Osamu Nabeta, Masayo Amano, Yoshimasa Hattori, Noboru Furusho
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Patent number: 5178981Abstract: A photoconductor for electrophotography includes an electroconductive substrate; and a photosensitive layer formed on the substrate. The photosensitive layer includes a charge generating substance consisting essentially of at least one polycyclic compound represent by general formula (I) and at least one azo compound represented by general formula (II). ##STR1## wherein X is selected from the group consisting of a hydrogen atom, a halogen atom and a cyano group and n is an integer of 0 to 4; ##STR2## wherein R is selected from the group consisting of a hydrogen atom, a halogen atom and a substituted or unsubstituted alkyl group and alkoxy group, Z1 is selected from the group consisting of a substituted or unsubstituted alkyl group, aryl group and aromatic heterocyclic group, Z.sub.2 is selected from the group consisting of a hydrogen atom, a cyano group, a carbomoyl group, a carboxyl group, an ester group and an acyl group, each of Z.sub.3 and Z.sub.Type: GrantFiled: February 27, 1991Date of Patent: January 12, 1993Assignee: Fuji Electric Co., Ltd.Inventors: Yoshimasa Hattori, Yoshinobu Sugata, Masami Kuroda, Noboru Furusho
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Patent number: 5096794Abstract: A photoconductor for electrophotography includes an electroconductive substrate and a photosensitive layer formed on the substrate. The photosensitive layer includes a novel bisazo compound as a charge generating substance therein. One type of bisazo compound is represented by general formula: ##STR1## wherein, A stands for a coupler residue.Type: GrantFiled: March 22, 1990Date of Patent: March 17, 1992Assignee: Fuji Electric Co., Ltd.Inventors: Masami Kuroda, Yoshimasa Hattori, Noboru Furusho
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Patent number: 4988594Abstract: A photoconductor for electrophotography comprises an electroconductive substrate and a photoconductive layer formed on the substrate and including a novel disazo compound as a charge generating layer. The disazo compound is represented by the following general formula: ##STR1## wherein X1 stands for one of an alkyl group, an aryl group and an aromatic heterocyclic group, each of which groups may be or not may be substituted, X.sub.2 stands for one of a hydrogen atom, a cyano group, a carbamoyl group, a carboxyl group, an ester group and an acyl group, each of X.sub.3 and X.sub.4 stands for one of a hydrogen atom, a halogen atom, a nitro group, an alkyl group and an alkoxyl group, both of last two groups may be or not may be substituted, Z stands for one of a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group and an aromatic heterocyclic group, each of which groups may be or not may be substituted and --N.dbd.N--D--N--N.dbd.N-- stands for a disazo residual group.Type: GrantFiled: July 26, 1989Date of Patent: January 29, 1991Assignee: Fuji Electric, Co. Ltd.Inventors: Yoshimasa Hattori, Noboru Furusho, Youichi Nakamura, Masami Kuroda
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Patent number: 4971876Abstract: A photoconductor for electrophotography comprises a substrate and a photosensitive layer formed on the substrate and including a novel tetrakisazo compound. The one type of the tetrakisazo compound is represented by the following general formula. ##STR1## Wherein A stands for a coupler residual group and R stands for one of a hydrogen atom, an alkyl group and an aryl group which may have a substituent group.Type: GrantFiled: January 17, 1990Date of Patent: November 20, 1990Assignee: Fuji Electric Co., Ltd.Inventors: Masami Kuroda, Yoshimasa Hattori, Noboru Furusho
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Patent number: 4935323Abstract: A photoconductor for electrophotography comprises a substrate and a photosensitive layer formed on the substrate and including a novel azo compound. The one type of the azo compound is represented by the following general formula. ##STR1## Wherein Cp stand for a coupler residual group and R.sub.1 stand for one of a hydrogen atom, a lower alkyl group, a lower alkoxy group and carbamoyl group.Type: GrantFiled: June 2, 1989Date of Patent: June 19, 1990Assignee: Fuji Electric Co., Ltd.Inventors: Yoshimasa Hattori, Noboru Furusho
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Patent number: 4929525Abstract: A photoconductor for electrophotography, including an electroconductive substrate; and a photosensitive layer formed on the electroconductive substrate and including a nobel azo compound or disazo compound as a charge generating substance. An azo compound is represented by the following general formula: ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 stands for a hydrogen atom, a halogen atom, a hydroxy group, an alkyl group, an alkoxy group, an allyl group, an aryl group, an aralkyl group, a carboxyl group or an ester group, and C.sub.p stands for a residual group of a coupler.Type: GrantFiled: December 6, 1988Date of Patent: May 29, 1990Assignee: Fuji Electric Co., Ltd.Inventors: Masami Kuroda, Yoshimasa Hattori, Noboru Furusho
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Patent number: 4882255Abstract: A photoconductor for electrophotography comprises a novel disazo compound as a charge generating substance. A disazo compound is represented by the following general formula: ##STR1## wherein, each of Ar.sub.1 and Ar.sub.2 stands for an aromatic hydrocarbon group or an aromatic heterocyclic group, both of which may have a substituent(s),each of R.sub.1 and R.sub.2 stands for an hydrogen atom or an alkyl group or an aryl group, a heterocyclic group which may have a substituent(s); andC.sub.p stands for a coupler residual group.Type: GrantFiled: December 21, 1988Date of Patent: November 21, 1989Assignee: Fuji Electric Co., Ltd.Inventors: Yoshimasa Hattori, Noboru Furusho
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Patent number: 4877703Abstract: A photoconductor for electrophotography comprising a novel squarylium as a charge generating substance. A squarylium compound is represented by the following general formula: ##STR1## wherein, each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 stands for a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a nitro group, and each of R.sub.7 and R.sub.8 stands for a hydrogen atom or a hydroxy group.Type: GrantFiled: December 14, 1988Date of Patent: October 31, 1989Assignee: Fuji Electric Co., Ltd.Inventors: Masami Kuroda, Yoshimasa Hattori, Noboru Furusho, Yoshinobu Sugata
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Patent number: 4871636Abstract: A photoconductor for electrophotography comprises a novel azo compound as a charge generating substance. An azo compound is represented by the following general formula: ##STR1## wherein, X.sub.1 stands for an alkyl group which may have a substituent(s) or a phenyl group which may have a substituent(s), X.sub.2 stands for a hydrogen atom, a cyano group, a carbamoyl group, an ester group, an acetyl group or a propyonyl group, each of X.sub.3 and X.sub.4 stands for a hydrogen atom, a halogen atom, a nitro group, an alkoxy group or an alkyo group which may have a substituent(s), and D stands for a substituent.Type: GrantFiled: December 21, 1988Date of Patent: October 3, 1989Assignee: Fuji Electric Co., Ltd.Inventors: Yoshimasa Hattori, Noboru Furusho