Patents by Inventor Takeshi Ohta
Takeshi Ohta 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: 7063116Abstract: A pneumatic tire containing a belt disposed radially outside a carcass in a tread portion, the belt including two cross plies of monofilament metallic cords laid at angles of from 15 to 30 degrees with respect to the circumferential direction of the tire, each monofilament cord composed of a waved single filament, the filament having a circular sectional shape having a diameter in the range of from 0.40 to 0.50 mm, or alternatively a non-circular sectional shape having an aspect ratio in the range of from 0.65 to 0.95 and a cross-sectional area in the range of 0.09 to 0.20 sq.mm.Type: GrantFiled: September 6, 2002Date of Patent: June 20, 2006Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Shinichi Miyazaki, Takeshi Ohta, Kazumi Yamazaki
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Publication number: 20060122181Abstract: A 5-membered heteroaromatic ring compound represented by the formula [I] wherein V is CH or N; W is S or O; R1 and R2 are each H etc.; X is —N(R4)—, —O—, —S—, —SO2—N(R5)—, —CO—N(R7)— etc.; L is wherein R20, R21, R22 and R25 are each H etc.; E is aryl or heteroaromatic ring group; R is —COOH etc.; B is aryl etc.; R3 is H etc.; Y is —C(R13)(R14)—N(R12)—C(R13)(R14)—O—, —N(R11)—, —O— etc.; A is alkylene; and Z is aryl etc., a prodrug thereof and a pharmaceutically acceptable salt thereof. The compound [I] has a superior protein tyrosine phosphatase 1B inhibitory activity and is useful as a therapeutic agent for diabetes, diabetic complications, hyperlipidemia, obesity and the like.Type: ApplicationFiled: July 7, 2005Publication date: June 8, 2006Applicant: Japan Tobacco Inc.Inventors: Tomoyuki Ikemoto, Masahiro Tanaka, Takeo Yuno, Johei Sakamoto, Hiroyuki Nakanishi, Yuichi Nakagawa, Takeshi Ohta, Shohei Sakata, Hisayo Morinaga
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Patent number: 7044181Abstract: There is provided a studless tire that is excellent especially in performance on a snow or ice road. A studless tire, wherein non-metal staple fibers having an average fiber diameter of 1 to 100 ?m and an average length of 0.1 to 5 mm are dispersed in a diene rubber in such a way that the non-metal staple fibers are oriented in a thickness direction of a tread, a complex elastic modulus E1 in the thickness direction of the tread and an elastic module E2 in a circumferential direction of the tire measured at 25° C. satisfy the equation 1.1?E1/E2?4, and hardness of the tread rubber measured at ?10° C. is 45 to 75 degrees.Type: GrantFiled: July 27, 2000Date of Patent: May 16, 2006Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Mamoru Uchida, Naohiko Kikuchi, Narihiro Tahara, Takeshi Ohta
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Publication number: 20050219517Abstract: The movable light environment measuring system includes a measurement apparatus which measures a light environment, and a barrow for moving measurement 4 which mounts said measurement apparatus and is driven by a single wheel that contacts to a ground, wherein said measurement apparatus includes a digital camera 5 equipped with an ultra-wide angle lens 5a that is upwardly aimed, and a light data recorder 7 which records light data that said digital camera has shot and outputted in conjunction with a position and a shooting direction of said digital camera 5, and wherein the barrow for moving measurement 4 includes a measurement position and direction calculating unit which calculates a position and a shooting direction of the digital camera 5 in picture taking by the digital camera 5 based on information for autonomous navigation from an acceleration sensor 9 and a rotation angle sensor 10 which detect an acceleration and a rotation angle of the barrow, respectively, and information on a moving distance fromType: ApplicationFiled: March 29, 2005Publication date: October 6, 2005Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Takafumi Tanaka, Takeshi Ohta
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Publication number: 20040252597Abstract: An optical head is provided with a semiconductor laser, an objective lens for gathering a beam from the semiconductor laser on an optical information recording medium, an objective lens actuator for driving the objective lens along a focusing direction and a tracking direction of the optical information recording medium, a metal-made optical base for holding the semiconductor laser and the objective lens actuator, and a feed screw and a guide shaft for guiding the optical base along the radial direction of the optical information recording medium. The optical base and the feed screw or the guide shaft are held in contact with sliding members made of a resin or a ceramic and having a heat conductivity. Thus, even if burrs are formed at slide holes during the molding of the optical base, a good slidability can be ensured for the feed screw and the guide shaft, and heat produced by the semiconductor laser can be radiated via the sliding members.Type: ApplicationFiled: June 10, 2004Publication date: December 16, 2004Inventors: Hideki Nakata, Hironori Tomita, Takeshi Ohta
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Publication number: 20040161012Abstract: A laser device capable of efficiently oscillating laser light and always obtaining a stable beam form is provided. For this purpose, in the laser device including an amplifying section (18) in which a laser medium is amplified to oscillate laser light (11), and an optical element for separating part of the laser light (11) oscillated, and shaping a beam form of the laser light (11) into a desired form to output the same, wherein the optical element has at least either one of a partial reflecting portion (26) for partially reflecting the laser light (11) or a non-reflective portion (28) for transmitting the laser light (11) at high transmissivity, each of which is provided on approximately a center portion, and a total reflecting portion (27) which is provided outside a perimeter of the partial reflecting portion (26) or the non-reflective portion (28), and which reflects the laser light (11) at high reflectivity.Type: ApplicationFiled: February 12, 2004Publication date: August 19, 2004Applicant: Komatsu Ltd.Inventors: Takahito Kumazaki, Takeshi Ohta
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Patent number: 6731666Abstract: A laser device capable of efficiently oscillating laser light and always obtaining a stable beam form is provided. For this purpose, in the laser device including an amplifying section (18) in which a laser medium is amplified to oscillate laser light (11), and an optical element for separating part of the laser light (11) oscillated, and shaping a beam form of the laser light (11) into a desired form to output the same, wherein the optical element has at least either one of a partial reflecting portion (26) for partially reflecting the laser light (11) or a non-reflective portion (28) for transmitting the laser light (11) at high transmissivity, each of which is provided on approximately a center portion, and a total reflecting portion (27) which is provided outside a perimeter of the partial reflecting portion (26) or the non-reflective portion (28), and which reflects the laser light (11) at high reflectivity.Type: GrantFiled: July 20, 2000Date of Patent: May 4, 2004Assignee: Komatsu Ltd.Inventors: Takahito Kumazaki, Takeshi Ohta
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Patent number: 6637487Abstract: A pneumatic tire comprises the following belt (A) or belt (B). The belt (A) comprises a ply made of waved monofilament steel cords and a ply made of multi-filament steel cords, wherein the waved monofilament steel cord is (1) spirally waved so that the wave pitches PA are in a range of from 14 to 50 mm and the amplitude HA of each wave is in a range of from 0.002 to 0.02 times the pitch PA of the wave, or (2) two-dimensionally waved so that the wave pitches PB are in a range of from 5 to 50 mm, and the amplitude HB of each wave is in a range of from 0.002 to 0.05 times the pitch PB of the wave. The belt (B) comprises two plies made of waved monofilament steel cords, wherein the waved monofilament steel cord is waved so that the wave pitches P are in a range of from 0.008 to 0.08 times the circumference of the tire and the wave height of each wave is in a range of from 0.002 to 0.025 times the pitch P of the wave.Type: GrantFiled: December 22, 2000Date of Patent: October 28, 2003Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Shinichi Miyazaki, Takeshi Ohta, Kazumi Yamazaki, Takuji Kusumoto, Osamu Toda
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Publication number: 20030047265Abstract: A pneumatic tire comprises a belt disposed radially outside a carcass in a tread portion, the belt comprising two cross plies of monofilament metallic cords laid at angles of from 15 to 30 degrees with respect to the circumferential direction of the tire, each monofilament cord composed of a waved single filament, the filament having a circular sectional shape having a diameter in a range of from 0.40 to 0.50 mm, or alternatively a non-circular sectional shape having an aspect ratio in a range of from 0.65 to 0.95 and a cross-sectional area in a range of 0.09 to 0.20 sq.mm.Type: ApplicationFiled: September 6, 2002Publication date: March 13, 2003Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Shinichi Miyazaki, Takeshi Ohta, Kazumi Yamazaki
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Publication number: 20030035108Abstract: One form of evaluation apparatus comprising a plurality of light sources vertically arranged by one side of a carrier line in width direction Y perpendicular to carrying direction X of the carrier line; and a light-receiving section arranged by an opposite side of the carrier line in the width direction Y perpendicular to the carrying direction X of the carrier line.Type: ApplicationFiled: July 9, 2002Publication date: February 20, 2003Applicant: MITSUI MINING & SMELTING CO., LTDInventors: Norio Taniguchi, Takeshi Ohta, Motoshi Tanaka
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Patent number: 6520232Abstract: A pneumatic tire comprises a belt disposed radially outside a carcass in a tread portion, the belt comprising two cross plies of monofilament metallic cords laid at angles of from 15 to 30 degrees with respect to the circumferential direction of the tire, each monofilament cord composed of a waved single filament, the filament having a circular sectional shape having a diameter in a range of from 0.40 to 0.50 mm, or alternatively a non-circular sectional shape having an aspect ratio in a range of from 0.65 to 0.95 and a cross-sectional area in a range of 0.09 to 0.20 sq.mm.Type: GrantFiled: July 7, 2000Date of Patent: February 18, 2003Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Shinichi Miyazaki, Takeshi Ohta, Kazumi Yamazaki
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Publication number: 20010018942Abstract: A pneumatic tire comprises the following belt (A) or belt (B). The belt (A) comprises a ply made of waved monofilament steel cords and a ply made of multi-filament steel cords, wherein the waved monofilament steel cord is (1) spirally waved so that the wave pitches PA are in a range of from 14 to 50 mm and the amplitude HA of each wave is in a range of from 0.002 to 0.02 times the pitch PA of the wave, or (2) two-dimensionally waved so that the wave pitches PB are in a range of from 5 to 50 mm, and the amplitude HB of each wave is in a range of from 0.002 to 0.05 times the pitch PB of the wave. The belt (B) comprises two plies made of waved monofilament steel cords, wherein the waved monofilament steel cord is waved so that the wave pitches P are in a range of from 0.008 to 0.08 times the circumference of the tire and the wave height of each wave is in a range of from 0.002 to 0.025 times the pitch P of the wave.Type: ApplicationFiled: December 22, 2000Publication date: September 6, 2001Inventors: Shinichi Miyazaki, Takeshi Ohta, Kazumi Yamazaki, Takuji Kusumoto, Osamu Toda
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Patent number: 6243163Abstract: The present invention can accurately detect a wavelength of a light to be detected, which is output from a source of light to be detected, without an error even if there is a change in the characteristic of a spectroscope due to an individual difference among the spectroscopes or a change in the measuring environment. The device according to the invention emits at least two reference lights (Ln, La) having different wavelengths (&lgr;n, &lgr;a) as the reference lights by reference light source. And, actual characteristic value (D) of spectroscope is calculated on the basis of detection positions (Sn, Sa) of the at least two reference lights (Ln, La) on a sensor and the known wavelengths (&lgr;n, &lgr;a) of the at least two reference lights (Ln, La) (D=(&lgr;a−&lgr;n)/(Sa−Sn)).Type: GrantFiled: September 17, 1999Date of Patent: June 5, 2001Assignee: Komatsu Ltd.Inventors: Osamu Wakabayashi, Tatsuo Enami, Shinji Nagai, Toru Suzuki, Takeshi Ohta, Hirokazu Kubo
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Patent number: 5444482Abstract: A manipulation of the shutter release button mechanism causes the first signal to be detected by the control processor, which selects in turn the still picture mode effecting still picture recording on a data recording medium. A further manipulation of the release button mechanism causes the second signal to be detected by the control processor, which selects in turn the movie picture mode effecting movie picture recording on the data recording medium. In the still picture mode, pixel signals generated by the image sensor are transferred on the frame basis, while in the movie picture mode, pixel signals are transferred on the interlaced field transfer basis. The pixel signals are converted into corresponding digital image data to be stored in the frame memory, from which the control processor read the stored image data. In the still picture mode, a frame of image data is sequentially read out from the memory and compressed as a still image to be recorded on the oprical disk.Type: GrantFiled: April 28, 1994Date of Patent: August 22, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Misawa, Takeshi Ohta
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Patent number: 5300956Abstract: A multibeam semiconductor laser array including n pieces of mutually independently drivable semiconductor laser elements which are arranged with a distance r between the elements in such a manner that light leaving centers of respective laser beams emitted from the semiconductor laser elements are aligned on a straight line. In the multibeam semiconductor laser array, the distance r is determined according to the following equation when a light emitting wave length of each of the semiconductor laser elements is expressed as .lambda. and a divergence angle of the laser beam in a direction of the straight line is expressed as .theta..sub.1 : ##EQU1## where n is an integer equal to or more than 2, .pi. is a circle ratio, I is an interlacing period which is a natural number mutually prime to n, and k is a spot diameter correction coefficient which is a real number in the range of 1.4 .ltoreq.k.ltoreq.1.8.Type: GrantFiled: February 27, 1992Date of Patent: April 5, 1994Assignee: Fuji Xerox Co., Ltd.Inventors: Takeshi Ohta, Masao Ito
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Patent number: 5253062Abstract: An image displaying apparatus has a dual port memory with a plurality of memory fields. Picture data generated by an NTSC TV camera are sequentially inputted to the serial ports of the dual port memory and then read out via the serial ports to be transferred to a video monitor. Since the transfer of data between each serial port and the memory field associated therewith is effected in parallel, the transfer is performed during the blanking period of the video monitor. In a period other than the blanking period, display data are sequentially fed from one serial port to the video monitor, while video data are fed to the other serial port. During such an input/output period, graphic data generated by a graphic processor are randomly written to the memory via random ports. The graphic data and the picture data are stored in the memory fields to produce display data to be displayed on the video monitor.Type: GrantFiled: September 19, 1991Date of Patent: October 12, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Takeshi Ohta
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Patent number: 4797052Abstract: A pallet exchange apparatus for a machine which includes a base, a pallet exchange arm rotatably mounted on the base, a turntable rotatably mounted on the base, an engaging mechanism provided on the turntable and a pallet guide mounted on the turntable. The pallet guide is shifted between a first position where a pallet supported thereon engages with an engaging portion of the pallet exchange arm and disengages from the engaging mechanism and a second position where the pallet engages with the engaging mechanism and disengages from the engaging portion of the exchange arm. The pallet exchange arm is rotated so as to exchange the pallets engaged with the engaging portion thereof between the turntable and a table of the machine.Type: GrantFiled: July 14, 1986Date of Patent: January 10, 1989Assignee: Toyoda Koki Kabushiki KaishaInventors: Takeshi Ohta, Yoji Kamiya, Kunimichi Nakashima, Mitsuyoshi Taniguchi
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Patent number: 4781512Abstract: A pallet changing system for a machine tool including a pallet changing device which is horizontally rotatable for exchanging a pallet on the work table of the tool with another pallet in a standby station. A plurality of pallet storing shelves are arranged in a plurality of concentric circular arrays and each shelf has a plurality of pallet supporting racks located one above another. The standby station forms a part of those circular arrays defining a central space surrounded by the racks. A rotary table is rotatably disposed in the center of that space. A pair of guide posts are upstanding from the rotary table. A structure is vertically movably supported on the posts. A pallet handling fork is provided on the structure horizontally movably to and away from the standby station. A pair of guide rails guide the horizontal movement of the fork. The fork has one end defining a pallet supporting portion.Type: GrantFiled: December 5, 1986Date of Patent: November 1, 1988Assignee: Toyoda Koki Kabushiki KaishaInventors: Takeshi Ohta, Tetsuro Yamakage
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Patent number: 4685850Abstract: A tool and workpiece change system adapted to a machining center with a tool magazine and a pallet pool having a pallet change station and a pallet loading and unloading station and associated with a pallet change apparatus for replacing a pallet on a worktable in the machining center with another pallet successively positioned at the pallet change station. The system comprises a replaceable hand support arranged adjacent the loading and unloading station to detachably support a first replaceable hand for grasping a workpiece and a second replaceable hand for grasping a cutting tool, a workpiece support arranged adjacent the hand support, a tool support arranged adjacent the workpiece support to detachably support a plurality of spare cutting tools, and a robot arranged to be movable between first and second spaced positions.Type: GrantFiled: September 24, 1985Date of Patent: August 11, 1987Assignee: Toyoda Koki Kabushiki KaishaInventors: Takeshi Ohta, Hiroshi Nakamura, Kazushi Murata
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Patent number: 4628458Abstract: Life of a tool used in a machining center having various sorts of tools can be detected by steps that a tool selection code at every execution of NC program is detected and the current-use tool number is stored, the machining distance of each tool is calculated, the machining distance is accumulated per each tool, the cumulative machining distance is compared with predetermined machining life distance to indicate the life of each tool, and then the life of each tool is determined on the basis of a result obtained in the comparing step.Type: GrantFiled: June 15, 1984Date of Patent: December 9, 1986Assignee: Toyoda Koki Kabushiki KaishaInventors: Takeshi Ohta, Tetsuro Yamakage, Yoshio Sakakibara