Patents by Inventor Nobuhiro Tani
Nobuhiro Tani 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: 20040210107Abstract: There is provided an endoscope system, which is provided with an endoscope that has an image pick-up device having a plurality of cells for accumulating charge in response to an image formed on the plurality of cells, a light source that is capable of emitting excitation light, and a controlling system that controls the image pick-up device so that charges accumulated in two or more of the plurality of cells are added together when the excitation light is used.Type: ApplicationFiled: March 30, 2004Publication date: October 21, 2004Applicant: PENTAX CorporationInventors: Nobuhiro Tani, Hideo Sugimoto
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Patent number: 6778219Abstract: A three-dimensional image capturing device obtains distance information of a standard subject, to which the distance from the device to each point of a surface of the standard subject is known. Based on the distance information of the standard subject, correction data is sensed, which is an error of distance information sensed when using a measurement subject, to which the distance from the device to each point of a surface of the standard subject is unknown. A distance measurement is performed for the measurement subject, so that distance information is obtained. The distance information of the measurement subject is corrected using the correction data.Type: GrantFiled: November 22, 2000Date of Patent: August 17, 2004Assignee: PENTAX CorporationInventors: Shuzo Seo, Nobuhiro Tani, Shinichi Kakiuchi
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Patent number: 6734450Abstract: A three-dimensional image capturing device comprises a light source for irradiating a distance measuring light beam to a subject. The light source has a plurality of light source rings, each of which is formed of a plurality of LEDs. The LEDs are annularly disposed along an outer periphery of a lens barrel. The ratio of the intensities of light beams irradiated by the first, second, third, fourth, and fifth light source rings is 1:2:4:8:16. The intensity of the distance measuring light beam irradiated by the light source rings is modulated by selecting the light source rings to be turned ON, so that the intensity of the distance measuring light beam changes in accordance with the time.Type: GrantFiled: March 1, 2002Date of Patent: May 11, 2004Assignee: PENTAX CorporationInventors: Shinichi Kakiuchi, Shuzo Seo, Nobuhiro Tani, Kiyoshi Yamamoto
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Patent number: 6721007Abstract: A three-dimensional image capturing device comprises an imaging device, such as a CCD, having a plurality of photo-diodes, a vertical transfer unit and a substrate. First and second electric charge discharging signals and an electric charge transfer signal are periodically output, respectively. Due to the first electric charge discharging signal, unwanted charge accumulated in the photo-diodes is discharged to the substrate. An output of the electric charge transfer signal is started before the end of the output of the first electric charge discharging signal, and ends after the start of the output of the second electric charge discharging signal. A reflected light beam, generated by a measurement subject due to a distance measuring light beam, is sensed by the photo-diodes. Due to the second electric charge discharging signal, the electric charge accumulation in the photo-diodes ends.Type: GrantFiled: April 11, 2000Date of Patent: April 13, 2004Assignee: PENTAX CorporationInventors: Nobuhiro Tani, Shuzo Seo, Shinichi Kakiuchi
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Publication number: 20030216601Abstract: A method for producing an oxygenated compound from a cycloalkane compound which method is characterized in that a cycloalkane compound is contacted with oxygen in the presence of a cobalt compound and a ruthenium compound.Type: ApplicationFiled: March 26, 2003Publication date: November 20, 2003Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Nobuhiro Tani, Shuzo Murata
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Patent number: 6555004Abstract: A method for separating an oxidation catalyst, an oxidation reaction product and a reaction solvent from a reaction mixture obtained by oxidizing a substrate in the presence of an oxidation catalyst containing an aromatic N-hydroxyimide compound and a transition metal, the method including (i) distilling the reaction solvent from the reaction mixture in the presence of an organic solvent which is immiscible with the reaction solvent to obtain the reaction mixture containing the reaction solvent in an amount of 5 parts by weight or less per one part by weight of the N-hydroxyimide compound, and the oxidation catalyst precipitated, and (ii) separating the reaction mixture obtained in the step (i) by a solid-liquid separation method into the oxidation product and the oxidation catalyst.Type: GrantFiled: May 1, 2001Date of Patent: April 29, 2003Assignees: Sumitomo Chemical Company, Limited, Daicel Chemical Industries, Ltd.Inventors: Nobuhiro Tani, Shuzo Murata
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Patent number: 6479705Abstract: A process for preparing a ketone, an alcohol and/or a hydroperoxide is provided by reacting a hydrocarbon with molecular oxygen in the presence of a cyclic N-hydroxyimide and a compound of a transition metal, in which an oxygen-containing gas is supplied in a reaction system and at the same time a gas containing 1 to-about 8.59, by volume of oxygen is discharged from the reaction system. This process is excellent in productivity and safety and produces the desired products at a high selectivity.Type: GrantFiled: December 14, 2000Date of Patent: November 12, 2002Assignees: Sumitomo Chemical Company, Limited, Daicel Chemical Industries, Ltd.Inventors: Shuzo Murata, Nobuhiro Tani, Hiroyuki Asano
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Publication number: 20020148947Abstract: A three-dimensional image capturing device comprises a light source for irradiating a distance measuring light beam to a subject. The light source has a plurality of light source rings, each of which is formed of a plurality of LEDs. The LEDs are annularly disposed along an outer periphery of a lens barrel. The ratio of the intensities of light beams irradiated by the first, second, third, fourth, and fifth light source rings is 1:2:4:8:16. The intensity of the distance measuring light beam irradiated by the light source rings is modulated by selecting the light source rings to be turned ON, so that the intensity of the distance measuring light beam changes in accordance with the time.Type: ApplicationFiled: March 1, 2002Publication date: October 17, 2002Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHAInventors: Shinichi Kakiuchi, Shuzo Seo, Nobuhiro Tani, Kiyoshi Yamamoto
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Patent number: 6459002Abstract: Cyclohexanone, cyclohexanol and/or cyclohexyl hydroperoxide are prepared at a high productivity by allowing cyclohexane to be in contact with an oxygen-containing gas using a catalyst comprising a cyclic N-hydroxyimide and a transition metal compound in the presence of cyclohexanone and optional cyclohexanol.Type: GrantFiled: November 26, 2001Date of Patent: October 1, 2002Assignees: Sumitomo Chemical Company, Limited, Daicel Chemical Industries, Ltd.Inventors: Shuzo Murata, Nobuhiro Tani
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Publication number: 20020065436Abstract: Cyclohexanone, cyclohexanol and/or cyclohexyl hydroperoxide are prepared at a high productivity by allowing cyclohexane to be in contact with an oxygen-containing gas using a catalyst comprising a cyclic N-hydroxyimide and a transition metal compound in the presence of cyclohexanone and optional cyclohexanol.Type: ApplicationFiled: November 26, 2001Publication date: May 30, 2002Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED, DAICEL CHEMICAL INDUSTRIES, LTD.Inventors: Shuzo Murata, Nobuhiro Tani
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Patent number: 6346980Abstract: A ground positioning system integrated with a distance measuring device that detects the distance from the device to a selected object for each pixel of the captured image of the selected object. The system, which also includes an azimuth sensor, calculates ground positioning coordinates of a selected object that correspond to a certain pixel of captured image using distance information, device ground positioning coordinates and device direction information.Type: GrantFiled: September 26, 2000Date of Patent: February 12, 2002Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Nobuhiro Tani, Shuzo Seo, Shinichi Kakiuchi, Kiyoshi Yamamoto
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Publication number: 20010037977Abstract: A method for separating an oxidation catalyst, an oxidation reaction product and a reaction solvent from a reaction mixture obtained by oxidizing a substrate in the presence of an oxidation catalyst containing an aromatic N-hydroxyimide compound and a transition metal, the method including (i) distilling the reaction solvent from the reaction mixture in the presence of an organic solvent which is immiscible with the reaction solvent to obtain the reaction mixture containing the reaction solvent in an amount of 5 parts by weight or less per one part by weight of the N-hydroxyimide compound, and the oxidation catalyst precipitated, and (ii) separating the reaction mixture obtained in the step (i) by a solid-liquid separation method into the oxidation product and the oxidation catalyst.Type: ApplicationFiled: May 1, 2001Publication date: November 8, 2001Inventors: Nobuhiro Tani, Shuzo Murata
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Publication number: 20010016670Abstract: A process for preparing a ketone, an alcohol and/or a hydroperoxide is provided by reacting a hydrocarbon with molecular oxygen in the presence of a cyclic N-hydroxyimide and a compound of a transition metal, in which an oxygen-containing gas is supplied in a reaction system and at the same time a gas containing 1 to 10% by volume of oxygen is discharged from the reaction system. This process is excellent in productivity and safety and produces the desired products at a high selectivity.Type: ApplicationFiled: December 14, 2000Publication date: August 23, 2001Inventors: Shuzo Murata, Nobuhiro Tani, Hiroyuki Asano
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Patent number: 6128420Abstract: A stationary data symbol reader includes a CCD, lens, CCD drive circuit, amplification circuit, binarization circuit, memory, CPU, light sources, light source drive circuit, communication driver, switch circuit and trigger switch. When reading, a frame image capture is carried out, and a number of picture elements of the fields of the frame corresponding to the displacement of an authenticator pattern (associated with the data symbol) between a second field image and a first field image is calculated. The moving speed of the data symbol is calculated from the displacement. The optimal light exposure time is calculated from the moving speed, and the optimal intensity of illumination is calculated from the exposure time.Type: GrantFiled: March 11, 1998Date of Patent: October 3, 2000Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Takeharu Shin, Shuzo Seo, Nobuhiro Tani, Makoto Nukui, Yukihiro Ishizuka
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Patent number: 6073850Abstract: A casing of an optical reader comprises a reading head and a handle. The reading head includes a frame portion having a bottom opening constituted as a parallelogram. The optical reader comprises an angular speed sensor. The optical reading is controlled in accordance with the trembling speed of the casing sensed by the angular speed sensor.Type: GrantFiled: August 29, 1997Date of Patent: June 13, 2000Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Nobuhiro Tani, Tetsuya Abe, Shuzo Seo
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Patent number: 6011880Abstract: An encoded symbol reading device capable of reading and decoding a tessellated symbol. A detector detects an optical image formed by the encoded symbol and outputs a signal corresponding to the optical image. The signal is compared with threshold values and a 1-bit data value is output. The 1-bit data values are converted into an n-bit data value which is stored in a memory. The threshold values are also stored in memory and are obtained by detecting an optical image formed by a surface having a predetermined color.Type: GrantFiled: February 10, 1997Date of Patent: January 4, 2000Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Nobuhiro Tani, Harumi Aoki, Keiji Sawanobori
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Patent number: 5969149Abstract: There is disclosed a process for producing hexahydrothieno[3,4-d]imidazole-2,4-diones of the formula (1): wherein R is the same or different and represents a lower alkyl group, an alkenyl group, an aryl group or an aralkyl group all of which may be substituted, which is characterized by the step of reacting hexahydrofuro[3,4-d]imidazole-2,4-diones of the formula (2): ##STR1## wherein R has the same meaning as described above with hydrogen sulfide in the presence of a basic compound and sulfur.Type: GrantFiled: September 28, 1998Date of Patent: October 19, 1999Assignee: Sumitomo Chemical Company, LimitedInventors: Nobuhiro Tani, Shinzo Seko
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Patent number: 5962836Abstract: A casing of an optical reader comprises a reading head and a handle. The reading head includes a frame portion having a bottom opening of a parallelogram. A first switch and a second switch are provided on the frame portion, adjacent to the bottom opening. The first switch and the second switch are placed symmetrically and diagonally about the center of the bottom opening. When the first switch and the second switch are pressed and the tip ends of them become flush with the frame portion, they are turned on. The optical reading is controlled in accordance with the combination of the signals outputted from the first and second switches.Type: GrantFiled: July 25, 1997Date of Patent: October 5, 1999Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Nobuhiro Tani, Shuzo Seo, Tetsuya Abe
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Patent number: 5945661Abstract: A data symbol reading device has a casing which includes a hand grip and a head part. The casing includes signal processing circuits, a light source, an image sensing device, and an optical system. The optical system directs light reflected from a symbol reading area such that an image is formed on a light receiving surface of the image sensing device. An indication unit, comprised of five LEDs, is provided on an easily visible surface of the casing. If, in the reading process, it is determined that a data symbol is fully within the symbol reading area, a central LED is illuminated. However, if the data symbol is protruding outside the symbol reading area, one or more LEDs are illuminated to indicate the direction of protrusion.Type: GrantFiled: June 3, 1996Date of Patent: August 31, 1999Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Makoto Nukui, Shuzo Seo, Takeharu Shin, Nobuhiro Tani, Yukihiro Ishizuka
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Patent number: RE36812Abstract: An image pick-up device driving apparatus including an image pick-up device having a light receiver which converts an image of an object to be taken to electrical signal charges to be accumulated, and a signal transfer device which transfers the accumulated signal charges, and a controller for controlling the image pick-up device to prevent unnecessary electrical charges accumulated by the light receiver from leaking into the signal transfer device before the electrical charges accumulated in the light receiver and transferred to the signal transfer device are read.Type: GrantFiled: August 15, 1996Date of Patent: August 8, 2000Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Nobuhiro Tani