Patents by Inventor Kiyoshi Takeuchi

Kiyoshi Takeuchi 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).

  • Publication number: 20030229230
    Abstract: A dye-forming coupler of the formula (I). A silver halide photographic light-sensitive material that contains at least one dye-forming coupler of the formula (I).
    Type: Application
    Filed: October 15, 2002
    Publication date: December 11, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Shigeki Uehira, Jun Ogasawara, Kiyoshi Takeuchi, Yasuhiro Shimada, Yasuaki Deguchi
  • Patent number: 6660465
    Abstract: A compound represented by the following formula (I) to (VII): In the formulas, R1 represents an acyl group, cyano group, nitro group, aryl group, heterocyclic residue, alkoxycarbonyl group, aryloxycarbonyl group, carbamoyl group, sulfamoyl group, alkylsulfonyl group, or arylsulfonyl group, which may be substituted, or a cyano or nitro group; R2 represents an alkyl group, aryl group or heterocyclic residue, which may be substituted; R3 represents an aryl group or heterocyclic residue, each of which may be substituted; R4, R6 and R9 represent a substituent; R5, R7 and R8 represent a hydrogen atom or substituent; n represents an integer of 0 to 2, wherein when n is 2, a plurality of R4's may be the same or different; L represents a divalent linking group; and k represents an integer of 0 or more, wherein when k is 2 or more, a plurality of L's may be the same or different.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: December 9, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeki Uehira, Kiyoshi Takeuchi
  • Patent number: 6620933
    Abstract: A azomethine yellow dye compound of general formula (I): General formula (I) wherein R1 and R2 each independently represent a hydrogen atom or a substituent; R3 represents a substituent; m indicates an integer from 0 to 3; when m is 2 or greater, R3's may be the same or different and may be mutually bonded to form a condensed ring; R3 may be bonded to R1 or R2 to form a condensed ring; R4 represents an aryl group or a heterocyclic group; R5 and R6 each independently represent a hydrogen atom or a substituent; R7 represents a substituent; n indicates an integer from 0 to 4; when n is 2 or greater, R7's may be the same or different and the may be mutually bonded to form a condensed ring; R7 may be bonded to R5 or R6 to form a condensed ring; and R5 and R6 may be bonded to each other to form a ring.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: September 16, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Takeuchi, Shigeki Uehira
  • Publication number: 20030125556
    Abstract: A azomethine yellow dye compound of general formula (I):
    Type: Application
    Filed: September 26, 2002
    Publication date: July 3, 2003
    Inventors: Kiyoshi Takeuchi, Shigeki Uehira
  • Publication number: 20030104324
    Abstract: A compound represented by the following formula (I) to (VII): 1
    Type: Application
    Filed: May 30, 2002
    Publication date: June 5, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Shigeki Uehira, Kiyoshi Takeuchi
  • Publication number: 20030091946
    Abstract: A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye compound derived from the coupler: 1
    Type: Application
    Filed: April 19, 2002
    Publication date: May 15, 2003
    Inventors: Shigeki Uehira, Kiyoshi Takeuchi
  • Publication number: 20030073047
    Abstract: A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye that can be derived from the dye-forming coupler: 1
    Type: Application
    Filed: March 27, 2002
    Publication date: April 17, 2003
    Inventors: Kiyoshi Takeuchi, Shigeki Uehira, Mario Aoki, Jun Ogasawara, Yasuhiro Shimada, Seiji Ichijima, Yasuaki Deguchi, Naoto Matsuda, Akira Ikeda, Hisashi Mikoshiba, Masahara Sugai, Taiji Katsumata
  • Publication number: 20030064332
    Abstract: A dye-forming coupler of formula (I): 1
    Type: Application
    Filed: March 27, 2002
    Publication date: April 3, 2003
    Inventors: Kiyoshi Takeuchi, Shigeki Uehira, Mario Aoki
  • Publication number: 20030041598
    Abstract: Of first and second two pressure chambers which are respectively formed on both sides of a first rack and a second rack, incompressible liquid is filled in the second pressure chambers which are positioned on the sides of back pressure at a driving time of the racks, and the second pressure chambers of the both racks are caused to communicate with each other via a throttle.
    Type: Application
    Filed: August 14, 2002
    Publication date: March 6, 2003
    Applicant: SMC Corporation
    Inventors: Kiyoshi Takeuchi, Mitsunori Magaribuchi
  • Publication number: 20030012728
    Abstract: An aluminum hydroxide having high purity with high brightness and a method for producing such an aluminum hydroxide are provided. The aluminum hydroxide may be produced by a method which comprises the steps of mixing a crude aluminum hydroxide with an alkaline solution to obtain a mixture thereof; heating the mixture to obtain a slurry in which a solid of aluminum hydroxide is present in an amount of from about 10% by weight to about 90% by weight based on the crude aluminum hydroxide to be used for the mixing; cooling the slurry to precipitate an aluminum hydroxide; and separating the resulting aluminum hydroxide from the slurry.
    Type: Application
    Filed: July 9, 2002
    Publication date: January 16, 2003
    Inventors: Hisakatsu Kato, Kiyoshi Takeuchi, Naoyuki Eguchi
  • Patent number: 6497172
    Abstract: A rotary actuator has a cushion mechanism for stopping a vane at a rotational terminal end position in a cushioning manner. The cushion mechanism has first and second openings. The first opening discharges an exhaust air pressed out from a cylinder hole by a rotating vane to an external portion without limiting a flow amount. The second opening discharges the exhaust air to the external portion in a state of limiting a flow amount. A flow amount adjusting mechanism connects to the second opening. The first opening is provided at a position sealed by the vane before the vane of a hole surface in the cylinder hole reaches a rotational terminal end position. The second opening is provided at a position which is not sealed by the vane after the vane reaches the rotational terminal end position.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: December 24, 2002
    Assignee: SMC Corporation
    Inventors: Akihiro Hirano, Kenji Koiwa, Kiyoshi Takeuchi
  • Patent number: 6495304
    Abstract: There is disclosed a novel color-developing agent of a 1,2,4-thiadiazol-5-yl hydrazine type. There is also disclosed a silver halide photographic light-sensitive material which gives sufficient color formation by development and forms an image excellent in image quality and image storability, by using the color-developing agent. Further, there is disclosed an image-forming method using the light-sensitive material.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: December 17, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Uchida, Yasuhiro Ishiwata, Kiyoshi Takeuchi, Taiji Katsumata, Takashi Nakamura
  • Patent number: 6474214
    Abstract: A three-position stop type swing actuator has a main piston freely moving in forward and backward directions in an axial direction within a casing, an output shaft placed at a coaxial position with the main piston in such a manner as to be fixed in an axial direction and freely rotate around an axis, a conversion and transmission mechanism converting a forward and backward motion of the main piston into a rotating and swinging motion of the output shaft, and a sub piston having a stroke smaller than that of the main piston a fluid pressure operating force larger than that of the main piston and arranged within the casing in such a manner as to freely move in the forward and backward directions and be capable of being brought into contact with the main piston so as to restrict a middle stop position of the main piston.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 5, 2002
    Assignee: SMC Corporation
    Inventors: Kiyoshi Takeuchi, Yoshihiro Takeda, Mitsunori Magaribuchi
  • Patent number: 6435072
    Abstract: The invention provides a rotary actuator having a rack driven in an oscillating manner by an air pressure, a pinion engaged with the rack, and a cushion mechanism for stopping the rack to at least one normal or inverse stroke end in a cushioning manner. The cushion mechanism has an exhaust port open to a pressure chamber at a position close to a chamber end rather than a port hole, a flow amount adjusting mechanism for restricting a flow amount of the exhaust air discharged from the exhaust port, and a cushion packing mounted to an outer peripheral surface of the piston and operating so as to shut the port hole from the pressure chamber immediately before the piston reaches the stroke end, thereby discharging the air within the pressure chamber through the flow amount adjusting mechanism.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: August 20, 2002
    Assignee: SMC Corporation
    Inventors: Akihiro Hirano, Kenji Koiwa, Kiyoshi Takeuchi
  • Publication number: 20020102489
    Abstract: There is disclosed a novel color-developing agent of a 1,2,4-thiadiazol-5-yl hydrazine type. There is also disclosed a silver halide photographic light-sensitive material which gives sufficient color formation by development and forms an image excellent in image quality and image storability, by using the color-developing agent. Further, there is disclosed an image-forming method using the light-sensitive material.
    Type: Application
    Filed: June 25, 2001
    Publication date: August 1, 2002
    Inventors: Osamu Uchida, Yasuhiro Ishiwata, Kiyoshi Takeuchi, Taiji Katsumata, Takashi Nakamura
  • Patent number: 6426535
    Abstract: First, first conductivity type impurities are injected into a semiconductor substrate to selectively form a first conductivity type region. Next, second conductivity type impurities higher in concentration than that of the first conductivity type impurities are injected into a predetermined region in the first conductivity type region to selectively form a second conductivity type region. Then, first conductivity type impurities are selectively injected into the second conductivity type region to selectively form a lightly doped second conductivity type region. By the step, a concentration distribution is formed in which a concentration of first conductivity type impurities increases from the first conductivity type region toward the lightly doped second conductivity type region.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: July 30, 2002
    Assignee: NEC Corporation
    Inventors: Kiyoshi Takeuchi, Shigetaka Kumashiro
  • Publication number: 20020070413
    Abstract: First, first conductivity type impurities are injected into a semiconductor substrate to selectively form a first conductivity type region. Next, second conductivity type impurities higher in concentration than that of the first conductivity type impurities are injected into a predetermined region in the first conductivity type region to selectively form a second conductivity type region. Then, first conductivity type impurities are selectively injected into the second conductivity type region to selectively form a lightly doped second conductivity type region. By the step, a concentration distribution is formed in which a concentration of first conductivity type impurities increases from the first conductivity type region toward the lightly doped second conductivity type region.
    Type: Application
    Filed: October 4, 1999
    Publication date: June 13, 2002
    Inventors: KIYOSHI TAKEUCHI, SHIGETAKA KUMASHIRO
  • Publication number: 20020064736
    Abstract: A dye-forming coupler of the formula (I). A silver halide photographic light-sensitive material that contains at least one dye-forming coupler of the formula (I).
    Type: Application
    Filed: September 26, 2001
    Publication date: May 30, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Shigeki Uehira, Jun Ogasawara, Kiyoshi Takeuchi, Yasuhiro Shimada, Yasuaki Deguchi
  • Patent number: 6373025
    Abstract: A laser fusion bonding apparatus includes a laser beam irradiation unit for emitting a laser beam with which portions of two works which are in contact with or close to each other are irradiated, and thereby fusion bonded. The laser beam is a substantially-parallel laser beam.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: April 16, 2002
    Assignees: Shinmaywa Industries, Ltd., Nippon Sheet Glass Co., Ltd.
    Inventors: Kiyoshi Takeuchi, Shirou Takigawa, Takahiko Kondou, Takashi Hosoya, Yasukuni Iwasaki, Koichi Abe
  • Patent number: 6368780
    Abstract: A silver halide photographic material excellent in color generation, color reproduction and image fastness, which comprises at least one coupler represented by the following formula: wherein R1 represents an alkyl group which may be optionally substituted, with the proviso that an alkyl group substituted by a halogen atom alone and an alkyl group substituted by a halogen atom and an aryl group are excluded from R1; R2 and R3, which may be the same or different, each represents a hydrogen atom or a substituent; and X1 represents a group which can leave by coupling with an oxidation product of a color developing agent; and an image formation method using the same.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: April 9, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Takeuchi, Taiji Katsumata, Satoshi Sano, Yuki Mizukawa