Patents by Inventor Katsumi Okada

Katsumi Okada 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: 10705330
    Abstract: A lens includes a lens body comprising a cylindrical surface along an optical axis direction and a fixed portion radially outwardly protruding from the lens body, comprising a diameter diminishing more and more from an image side toward a subject side along an optical axis of the lens body, and including an inclined surface contiguous to the cylindrical surface of the lens body.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: July 7, 2020
    Assignee: KYOCERA Corporation
    Inventors: Hiroshi Okada, Katsumi Tsuji, Yasushi Koshiba, Takatoshi Nakata
  • Publication number: 20200157295
    Abstract: The present invention achieves higher performance (improvement in, for example, heat resistance, durability, and mechanical characteristics) of polyamide resin by a method which is not dependent on a combination with fibers. According to an embodiment of a polyamide resin member of the present invention, the polyamide resin member contains nano-oriented crystals of polyamide 66, and has a high heatproof temperature (Th?278° C.) and a high melting point (Tm?282° C.).
    Type: Application
    Filed: May 9, 2018
    Publication date: May 21, 2020
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Masamichi HIKOSAKA, Kiyoka OKADA, Kenichiro IWASAKI, Kei YASUI, Katsuomi TANAHASHI, Katsumi NABESHIMA, Mai ISHIKAWA
  • Patent number: 10651611
    Abstract: An L-type coaxial connector is connected to a coaxial cable including a central conductor and an external conductor, and includes a housing, a bushing, and a socket. The housing includes a housing main body, a back-side section, and a crimp section. The housing main body has a first cut section. The back-side section includes a lid section and an extending section extending from the lid section and above which the external conductor is placed. The crimp section extends from the extending section, and its leading end section is bent so as to be opposed to the extending section such that the coaxial cable is interposed therebetween. The extending section has a second cut section, and a joining member joining the external conductor and the extending section is present inside the second cut section.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: May 12, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Daisuke Okada, Yoshihiro Himi, Katsumi Kohnishi
  • Patent number: 10618882
    Abstract: A compound represented by formula (I), wherein A? represents a halogen ion, a benzenesulfonate ion, an alkylsulfonate ion or the like, X represents a halogeno group or the like, a is an integer of 0 to 4, Y represents a C1-C8 alkyl group or the like, b is an integer of 0 to 5.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: April 14, 2020
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Yuki Hashimoto, Katsumi Okada, Fuminori Komatsu, Satoshi Kajita, Tomomi Kobayashi
  • Publication number: 20190389833
    Abstract: A compound represented by formula (I), wherein A? represents a halogen ion, a benzenesulfonate ion, an alkylsulfonate ion or the like, X represents a halogeno group or the like, a is an integer of 0 to 4, Y represents a C1-C8 alkyl group or the like, b is an integer of 0 to 5.
    Type: Application
    Filed: July 26, 2016
    Publication date: December 26, 2019
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Yuki Hashimoto, Katsumi OKADA, Fuminori KOMATSU, Satoshi KAJITA, Tomomi KOBAYASHI
  • Publication number: 20190260168
    Abstract: An L-type coaxial connector is connected to a coaxial cable including a central conductor and an external conductor, and includes a housing, a bushing, and a socket. The housing includes a housing main body, a back-side section, and a crimp section. The housing main body has a first cut section. The back-side section includes a lid section and an extending section extending from the lid section and above which the external conductor is placed. The crimp section extends from the extending section, and its leading end section is bent so as to be opposed to the extending section such that the coaxial cable is interposed therebetween. The extending section has a second cut section, and a joining member joining the external conductor and the extending section is present inside the second cut section.
    Type: Application
    Filed: May 6, 2019
    Publication date: August 22, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Daisuke OKADA, Yoshihiro HIMI, Katsumi KOHNISHI
  • Publication number: 20090239738
    Abstract: Titanium oxide-based photocatalysts which contain a metal halide in titanium oxide and which are prepared from titanium oxide and/or its precursor, which may optionally be heat treated, by contact with a reactive gas containing a metal halide of the formula MXn or MOXn (wherein M=a metal, X=a halogen, and n=an integer) with heating stably develop a high photocatalytic activity with visible light irradiation. The photocatalysts may subsequently be stabilized by contact with water or by heat treatment, and/or promoted by contact with a heteropoly acid and/or an isopoly acid so as to include a metal complex in the titanium oxide. Photocatalysts prepared in this manner exhibit novel ESR features. The present invention also provides methods for preparing these photocatalysts, a photocatalyst dispersion and a photocatalytic coating fluid containing such a photocatalyst, and photocatalytic functional products and methods for their manufacture using the photocatalyst.
    Type: Application
    Filed: February 13, 2009
    Publication date: September 24, 2009
    Applicants: SUMITOMO METAL INDUSTRIES, LTD., OSAKA TITANIUM TECHNOLOGIES CO., LTD.
    Inventors: Katsumi Okada, Katsuhiro Nishihara, Yasuhiro Masaki, Haruhiko Kajimura, Michiyasu Takahashi, Tadashi Yao, Tadashi Ogasawara, Munetoshi Watanabe, Shiji Shimosaki, Kouji Oda, Sadanobu Nagaoka
  • Publication number: 20090123769
    Abstract: A titanium oxide photocatalyst responsive to visible light which can exhibit a high photocatalytic activity in response to visible light is produced by subjecting titanium oxide and/or titanium hydroxide obtained by neutralizing an acidic titanium compound with a nitrogen-containing base to heat treatment in an atmosphere containing a hydrolyzable metal compound (e.g., a titanium halide) and then to additional heat treatment in a gas having a moisture content of 0.5-4.0 volume % at a temperature of 350° C. or above. The photocatalyst which is a nitrogen-containing titanium oxide has no substantial peak at a temperature of 600° C. or above in a mass fragment spectrum obtained by thermal desorption spectroscopy in which the ratio m/e of the mass number m to the electric charged e of ions is 28, and the peak having the smallest half band width is in the range of 400-600° C. in the spectrum. The nitrogen content calculated from the peak appearing at 400 eV±1.
    Type: Application
    Filed: March 22, 2007
    Publication date: May 14, 2009
    Applicant: SUMITOMO TITANIUM CORPORATION
    Inventors: Yasuhiro Masaki, Katsuhiro Nishihara, Tadashi Fukuda, Katsumi Okada, Masahito Tasaka, Shinji Shimosaki, Hideaki Kanno, Sadanobu Nagaoka, Kazuomi Azuma, Tadashi Ogasawara
  • Patent number: 7521133
    Abstract: Titanium oxide-based photocatalysts which contain a metal halide in titanium oxide and which are prepared from titanium oxide and/or its precursor, which may optionally be heat treated, by contact with a reactive gas containing a metal halide of the formula MXn or MOXn (wherein M=a metal, X=a halogen, and n=an integer) with heating stably develop a high photocatalytic activity with visible light irradiation. The photocatalysts may subsequently be stabilized by contact with water or by heat treatment, and/or promoted by contact with a heteropoly acid and/or an isopoly acid so as to include a metal complex in the titanium oxide. Photocatalysts prepared in this manner exhibit novel ESR features. The present invention also provides methods for preparing these photocatalysts, a photocatalyst dispersion and a photocatalytic coating fluid containing such a photocatalyst, and photocatalytic functional products and methods for their manufacture using the photocatalyst.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: April 21, 2009
    Assignees: Osaka Titanium Technologies Co., Ltd., Sumitomo Metal Industries, Ltd.
    Inventors: Katsumi Okada, Katsuhiro Nishihara, Yasuhiro Masaki, Haruhiko Kajimura, Michiyasu Takahashi, Tadashi Yao, Tadashi Ogasawara, Munetoshi Watanabe, Shiji Shimosaki, Kouji Oda, Sadanobu Nagaoka
  • Patent number: 7437089
    Abstract: The size of a resonance noise due to a signal of an alternating voltage applied to a charging member (charging roller) is detected by a piezoelectric device (PZ), and in cases in which the size of the detected resonance noise (detection signal level) exceeds a predetermined size, the frequency of the alternating voltage signal applied to the charging member is shifted, by a control unit (50), by a predetermined frequency amount only.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: October 14, 2008
    Assignee: Kyocera Mita Corporation
    Inventor: Katsumi Okada
  • Publication number: 20070248831
    Abstract: A highly active titanium oxide photocatalyst of the type responsive to visible light is prepared by subjecting a titanium (hydr)oxide raw material obtained by neutralizing an acidic titanium compound in ammonia or an amine under conditions such that the final pH is 7 or below to heat treatment in an atmosphere containing a hydrolyzable compound followed by contact with water and additional heat treatment at a temperature of at least 350° C. The resulting titanium oxide photocatalyst comprises titanium oxide with a specific surface area of at most 120 m2/g and with the amount of surface hydroxyl groups being at least 600 ?eq/g. Preferably the density of surface hydroxyl groups is at least 8 ?eq/m2, and the ratio of the amount of terminal type hydroxyl groups (T) to the amount of bridge type hydroxyl groups (B) in the surface hydroxyl groups satisfies T/B?0.20. This titanium oxide photocatalyst has an ESR spectrum having two types of triplet signal for which the g values of the main spectra are 1.993-2.
    Type: Application
    Filed: April 19, 2005
    Publication date: October 25, 2007
    Applicant: Sumitomo Titanium Corporation
    Inventors: Katsuhiro Nishihara, Yasuhiro Masaki, Tadashi Fukuda, Katsumi Okada, Shinji Shimosaki, Sadanobu Nagaoka, Hideaki Kanno, Kazuomi Azuma, Tadashi Ogasawara
  • Publication number: 20070098424
    Abstract: The size of a resonance noise due to a signal of an alternating voltage applied to a charging member (charging roller) is detected by a piezoelectric device (PZ), and in cases in which the size of the detected resonance noise (detection signal level) exceeds a predetermined size, the frequency of the alternating voltage signal applied to the charging member is shifted, by a control unit (50), by a predetermined frequency amount only.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 3, 2007
    Inventor: Katsumi Okada
  • Patent number: 7116933
    Abstract: A developing unit is adapted to an image forming apparatus of an electrophotographic system that has a two component developing agent. The developing unit deposits a thin layer of toner on a developing roller by way of a magnetic brush on a magnetic roller. The toner then is transferred from the developing roller to a photosensitive drum. Developing bias voltages applied to the rollers have DC and AC components. Thus, electric current alternately flows in the magnetic roller and the developing roller to accelerate toner transfer. Sufficient toner is supplied from the magnetic roller to the developing roller, and sufficient toner is recovered from the developing roller to the magnetic roller. This arrangement lowers the amplitude of the AC bias voltage, thereby eliminating an influence on the photosensitive drum. Further, the frequencies of the AC bias voltages are constant. Thus AC bias voltage generating circuits have a low cost.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: October 3, 2006
    Assignee: Kyocera Mita Corporation
    Inventor: Katsumi Okada
  • Publication number: 20060062606
    Abstract: A developing unit is adapted to an image forming apparatus of an electrophotographic system that has a two component developing agent. The developing unit deposits a thin layer of toner on a developing roller by way of a magnetic brush on a magnetic roller. The toner then is transferred from the developing roller to a photosensitive drum. Developing bias voltages applied to the rollers have DC and AC components. Thus, electric current alternately flows in the magnetic roller and the developing roller to accelerate toner transfer. Sufficient toner is supplied from the magnetic roller to the developing roller, and sufficient toner is recovered from the developing roller to the magnetic roller. This arrangement lowers the amplitude of the AC bias voltage, thereby eliminating an influence on the photosensitive drum. Further, the frequencies of the AC bias voltages are constant. Thus AC bias voltage generating circuits have a low cost.
    Type: Application
    Filed: September 23, 2004
    Publication date: March 23, 2006
    Applicant: Kyocera Mita Corporation
    Inventor: Katsumi Okada
  • Publication number: 20050227008
    Abstract: Titanium oxide-based photocatalysts which contain a metal halide in titanium oxide and which are prepared from titanium oxide and/or its precursor, which may optionally be heat treated, by contact with a reactive gas containing a metal halide of the formula MXn or MOXn (wherein M=a metal, X=a halogen, and n=an integer) with heating stably develop a high photocatalytic activity with visible light irradiation. The photocatalysts may subsequently be stabilized by contact with water or by heat treatment, and/or promoted by contact with a heteropoly acid and/or an isopoly acid so as to include a metal complex in the titanium oxide. Photocatalysts prepared in this manner exhibit novel ESR features. The present invention also provides methods for preparing these photocatalysts, a photocatalyst dispersion and a photocatalytic coating fluid containing such a photocatalyst, and photocatalytic functional products and methods for their manufacture using the photocatalyst.
    Type: Application
    Filed: March 20, 2003
    Publication date: October 13, 2005
    Inventors: Katsumi Okada, Katsuhiro Nishihara, Yasuhiro Masaki, Haruhiko Kajimura, Michiyasu Takahashi, Tadashi Yao, Tadashi Ogasawara, Munetoshi Watanabe, Shiji Shimosaki, Kouji Oda, Sadanobu Nagaoka
  • Patent number: 5634360
    Abstract: A guiding method and apparatus are presented for preventing the generation of lateral curving in a rolled slab produced in a roughing mill train, consisting of an edging mill and a horizontal mill in tandem, for example. The apparatus basically includes a first side guide placed upstream at the entrance to the edging mill, a second side guide placed downstream at the exit of the horizontal mill and a third side guide placed between the edging mill and the horizontal mill. The first side guide at the entrance to the edging mill synchronously closes the separation distance of the guide components upon the entry of the rolled slab into the first side guide, leaving a narrow space between the guide and the rolled slab. The third side guide closes the separation spacing based on slab exit timing representing the instant the tail end of the rolled slab passes through the edging mill. The second side guide assumes a narrow separation distance when the head end of the rolled slab enters therebetween.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: June 3, 1997
    Assignees: Ishikawajima-Harima Heavy Industries Co., Ltd., Kawasaki Steel Corportion
    Inventors: Nobuhiro Tazoe, Hiroaki Kuwano, Katsumi Okada, Makoto Shitomi, Hideyuki Nikaido, Takeshi Fujitsu, Katsumi Kawakami, Tetsuo Shima, Shinji Tanaka
  • Patent number: 5613390
    Abstract: In a corner reduction device for reducing side corners of a slab with corner rolls, a pair of upper and lower corner rolls are mounted inside a unitary unit frame, and a corner roll unit housing the unitary frame which is movable in the direction of width and vertical direction of the material is formed. Vertical position of the corner roll unit is controlled by a lifting power control cylinder through a push rod and position in direction of material width is controlled by a reduction cylinder. Driving of cylinder servo valves is controlled in accordance with position set values set by position setters, load set values set by load setters, and feedback signals from position sensors, thereby controlling the corner roll positions to fixed lateral and vertical positions. The driving of the servo valves is corrected according to values detected by cylinder pressure sensors, to evenly reduce the right and left corners of the material.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: March 25, 1997
    Assignee: Kawasaki Steel Corporation
    Inventors: Takashi Ishikawa, Takao Yunde, Toshisada Takechi, Katsumi Okada, Takatoshi Amakawa
  • Patent number: 5168795
    Abstract: An automatic food frying and vending system having a refrigerated storage chamber for storing food material to be fried and a frying chamber for frying material in cooking oil are installed in the main body of the automatic food frying and vending system in discrete sections designated for their respective purposes. The refrigrated chamber includes a stocker unit for receiving and keeping a number of packed containers, each sealed by a lid. A feeding device is provided with a holder for receiving from a conveying device the sealed container and inverting the container.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: December 8, 1992
    Assignee: Higashi Hiroshima Golf Shinko Kabushiki Kaisha
    Inventor: Katsumi Okada
  • Patent number: 5029520
    Abstract: An automatic food frying and vending system which is so constructed that a storage chamber for storing therein the food material to be fried in their frozen state and a frying chamber for frying the material in cooking oil are installed in the main body of the automatic food frying and vending system in discrete sections designated for their respective purposes; then a stocker for receiving and keeping a larger number of packed containers, each having lid or cover, of the abovementioned food material to be fried is provided in the abovementioned storage chamber; a carrying device for taking out, one by one, from the storage chamber each container of the food material to be fried which has so far been housed in the stocker, and a transporting and feeding device for receiving thereon the container of the food material to be fried, as taken out of the storage chamber by the carrying device, opening the sealed cover of the container, and forwarding the food material to be fried into the frying chamber.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: July 9, 1991
    Assignee: Kabushiki Kaisha Daikure
    Inventor: Katsumi Okada