Patents by Inventor Masashi Yamashita
Masashi Yamashita 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: 9989744Abstract: A variable magnification optical system has, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; an aperture stop; a third lens group having positive refractive power; and a rear lens group. Upon zooming from a wide-angle end state to a telephoto end state, at least the rear lens group is moved toward the object side, and distances between the lens groups are varied. Upon focusing from an infinitely distant object to a closely distant object, the third lens group is moved along the optical axis. At least a portion of the rear lens group constitutes a vibration reduction lens group having negative refractive power and moveable perpendicular to the optical axis. An optical apparatus and a method of manufacture are also provided.Type: GrantFiled: April 23, 2015Date of Patent: June 5, 2018Assignee: Nikon CorporationInventors: Akihiko Obama, Masashi Yamashita
-
Patent number: 9957695Abstract: An exhaust system of a work machine is equipped with a first exhaust system, a second exhaust system, and a third exhaust system. The first exhaust system and the third exhaust system are arranged to be in parallel with respective one ends directed in the same direction. In a plan view, the second exhaust system is arranged with the other end side directed in the same direction as the one end sides of the first exhaust system and the third exhaust system to be in parallel with the first exhaust system and the third exhaust system between the first exhaust system and the third exhaust system and, in a side view, is arranged above the first exhaust system and the third exhaust system.Type: GrantFiled: December 25, 2015Date of Patent: May 1, 2018Assignee: KCM CORPORATIONInventors: Takashi Takeyama, Keigo Kikuchi, Katsutaka Hara, Masashi Yamashita
-
Publication number: 20180090416Abstract: A heat dissipation component includes a plate that presses a heat receiving portion against a heat generating portion, and a heat pipe installed at a first surface side of the plate to be in contact with the heat receiving portion, wherein the plate has a shape of an equilateral triangle in plan view from a normal direction of the first surface of the plate, an outer circumferential portion of the plate, except for a portion between each two vertexes of the equilateral triangle, is bent to the first surface side of the plate, and the heat pipe extends to an outside of the plate through a non-bent portion in the outer circumferential portion of the plate.Type: ApplicationFiled: September 12, 2017Publication date: March 29, 2018Applicant: FUJITSU LIMITEDInventors: Kouichi Shinotou, Tadanori Tachikawa, Masashi Yamashita
-
Patent number: 9926153Abstract: The present invention is to provide a sheet aligning apparatus that is capable of detecting misalignment. A control portion of a post-processing apparatus causes a front aligning member and a rear aligning member to be moved to an aligning position to align sheets conveyed to a processing tray, causes the front aligning member to be moved from the aligning position to a detecting position, and determines whether an electrostatic capacitance sensor detects misalignment (sheet shifting from a sheet bundle). When it is determined that the sensor detects misalignment, the front aligning member is moved from the detecting position to the aligning position so that sheets are realigned.Type: GrantFiled: November 29, 2016Date of Patent: March 27, 2018Assignee: CANON FINETECH NISCA INC.Inventors: Yuichi Kubota, Tatsuya Ohmori, Masashi Yamashita
-
Patent number: 9926162Abstract: The present invention is to provide a sheet conveying apparatus capable of preventing detection error without causing damage on a sheet. The present post-processing apparatus includes a sheet conveying path to convey a sheet as being formed between an upper guide member and a lower guide member for guiding a sheet, and a detection portion including a second sensor as an electrostatic capacitance sensor to detect a sheet being conveyed on the sheet conveying path with output of the second sensor. The second sensor is fixed on a face of an upper guide member on an opposite side to the conveying path and the second sensor and the sheet conveying path are separated by the upper guide member.Type: GrantFiled: November 3, 2016Date of Patent: March 27, 2018Assignee: CANON FINETECH NISCA INC.Inventors: Tatsuya Ohmori, Masashi Yamashita, Yuichi Kubota
-
Publication number: 20180031811Abstract: An optical system includes: a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group, disposed in this order along an optical axis starting from an object side, wherein: the second lens group is movable along the optical axis to perform focusing from an infinity-distance object to a short-distance object; and the third lens group comprises: a vibration-proofing lens group configured to be movable in a direction having a component perpendicular to the optical axis to perform image surface correction on image blurring; and an adjustment lens group that is disposed closer to an image side than the vibration-proofing lens group is, the adjustment lens group including a negative lens Ln and a lens group having a positive refractive power, disposed next to the negative lens Ln, and the adjustment lens group being capable of adjusting an air gap between the negative lens Ln and the lens group having a positive refractive power.Type: ApplicationFiled: February 25, 2016Publication date: February 1, 2018Inventors: Satoshi MIWA, Masashi YAMASHITA
-
Patent number: 9855871Abstract: A vehicle seat having a seat cushion and ottoman pillars attached to the seat cushion, the seat cushion can be formed in a compact manner. The vehicle seat (S) comprises a cushion frame (F1) including a pair of cushion side frames (85), a cushion front member (86) connecting front ends of the cushion side frames with each other and a cushion rear member (87). The cushion front member is provided with a pair of recesses (143) extending in a fore and aft direction, and a pair of pillar support portions (141) extending in the fore and aft direction are received in and bonded to the respective recesses, the ottoman including a pair of ottoman pillars (135) inserted into the respective pillar support portions.Type: GrantFiled: December 16, 2014Date of Patent: January 2, 2018Assignee: TS TECH CO., LTD.Inventors: Shinya Aita, Hirotaka Takei, Masahiko Yamamoto, Shingo Kimata, Shigekazu Otake, Takahiro Mitsui, Masashi Yamashita
-
Patent number: 9828203Abstract: The present invention is to provide a sheet aligning apparatus that is capable of detecting misalignment. A control portion of a post-processing apparatus causes a front aligning member and a rear aligning member to be moved to an aligning position to align sheets conveyed to a processing tray, and determines whether an electrostatic capacitance sensor detects misalignment (sheet shifting from a sheet bundle). After the control portion determines that there is no misalignment, the control portion performs detection strength adjusting for a sensor and initial value setting for detecting misalignment of a next sheet.Type: GrantFiled: November 29, 2016Date of Patent: November 28, 2017Assignee: CANON FINETECH NISCA INC.Inventors: Yuichi Kubota, Tatsuya Ohmori, Masashi Yamashita
-
Publication number: 20170304137Abstract: An upper-limb rehabilitation assisting device includes first and second handles coupled to first and second rotating shafts and rotationally operated by hands on a paralytic limb side and a healthy limb side; first and second biosignal detecting parts that detect first and second biosignals corresponding to the paralytic limb side and the healthy limb side; first and second drive parts that drive the first and second rotating shafts; and a control part that performs a cooperative control of the first rotating shaft and the second rotating shaft. The control part controls the torques of the first and second drive parts at the time of the cooperative control of the first and second rotating shafts the basis of the degree of cooperation between the first and second biosignals.Type: ApplicationFiled: April 18, 2017Publication date: October 26, 2017Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, RIKENInventors: Hisayoshi SUGIHARA, Hitoshi YAMADA, Takashi IZUO, Masashi YAMASHITA, Keiichi KITAJO, Shingo SHIMODA
-
Publication number: 20170284059Abstract: An exhaust system of a work machine is equipped with a first exhaust system, a second exhaust system, and a third exhaust system. The first exhaust system and the third exhaust system are arranged to be in parallel with respective one ends directed in the same direction. In a plan view, the second exhaust system is arranged with the other end side directed in the same direction as the one end sides of the first exhaust system and the third exhaust system to be in parallel with the first exhaust system and the third exhaust system between the first exhaust system and the third exhaust system and, in a side view, is arranged above the first exhaust system and the third exhaust system.Type: ApplicationFiled: December 25, 2015Publication date: October 5, 2017Applicant: KCM CorporationInventors: Takashi TAKEYAMA, Keigo KIKUCHI, Katsutaka HARA, Masashi YAMASHITA
-
Publication number: 20170218109Abstract: To obtain a modified polypropylene-based resin which shows specific viscoelasticity and from which an expanded sheet having a low open cell ratio can be obtained.Type: ApplicationFiled: September 29, 2015Publication date: August 3, 2017Applicant: SEKISUI PLASTICS CO., LTD.Inventors: Kohei TAZUMI, Eiji FUKUYAMA, Michihiro HAYASHI, Shota ENDO, Masashi YAMASHITA
-
Publication number: 20170176726Abstract: A compact zooming optical system, an optical apparatus and a method for manufacturing the zooming optical system having a vibration reduction function, a high zooming ratio, a wide-angle view and superb optical performance are provided, the system including, in order from an object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; a third lens group G3 having positive refractive power; and a fourth lens group G4 having negative refractive power; upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens group G1 and the second lens group G2, a distance between the second lens group G2 and the third lens group G3 and a distance between the third lens group G3 and the fourth lens group G4 being respectively varied; the third lens group G3 having, in order from the object side, a first segment group G31 having positive refractive power and a second segment group G32; the second segment group G32 being mType: ApplicationFiled: March 2, 2017Publication date: June 22, 2017Inventor: Masashi YAMASHITA
-
Publication number: 20170152118Abstract: The present invention is to provide a sheet aligning apparatus that is capable of detecting misalignment. A control portion of a post-processing apparatus causes a front aligning member and a rear aligning member to be moved to an aligning position to align sheets conveyed to a processing tray, causes the front aligning member to be moved from the aligning position to a detecting position, and determines whether an electrostatic capacitance sensor detects misalignment (sheet shifting from a sheet bundle). When it is determined that the senor detects misalignment, the front aligning member is moved from the detecting position to the aligning position so that sheets are realigned.Type: ApplicationFiled: November 29, 2016Publication date: June 1, 2017Applicant: NISCA CORPORATIONInventors: Yuichi KUBOTA, Tatsuya OHMORI, Masashi YAMASHITA
-
Publication number: 20170152119Abstract: The present invention is to provide a sheet aligning apparatus that is capable of detecting misalignment. A control portion of a post-processing apparatus causes a front aligning member and a rear aligning member to be moved to an aligning position to align sheets conveyed to a processing tray, and determines whether an electrostatic capacitance sensor detects misalignment (sheet shifting from a sheet bundle). After the control portion determines that there is no misalignment, the control portion performs detection strength adjusting for a sensor and initial value setting for detecting misalignment of a next sheet.Type: ApplicationFiled: November 29, 2016Publication date: June 1, 2017Applicant: NISCA CORPORATIONInventors: Yuichi KUBOTA, Tatsuya OHMORI, Masashi YAMASHITA
-
Publication number: 20170121136Abstract: The present invention is to provide a sheet conveying apparatus capable of preventing detection error without causing damage on a sheet. The present post-processing apparatus includes a sheet conveying path to convey a sheet as being formed between an upper guide member and a lower guide member for guiding a sheet, and a detection portion including a second sensor as an electrostatic capacitance sensor to detect a sheet being conveyed on the sheet conveying path with output of the second sensor. The second sensor is fixed on a face of an upper guide member on an opposite side to the conveying path and the second sensor and the sheet conveying path are separated by the upper guide member.Type: ApplicationFiled: November 3, 2016Publication date: May 4, 2017Applicant: NISCA CORPORATIONInventors: Tatsuya OHMORI, Masashi YAMASHITA, Yuichi KUBOTA
-
Patent number: 9625686Abstract: A compact zooming optical system, an optical apparatus and a method for manufacturing the zooming optical system having a vibration reduction function, a high zooming ratio, a wide-angle view and superb optical performance are provided, the system including, in order from an object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; a third lens group G3 having positive refractive power; and a fourth lens group G4 having negative refractive power; upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens group G1 and the second lens group G2, a distance between the second lens group G2 and the third lens group G3 and a distance between the third lens group G3 and the fourth lens group G4 being respectively varied; the third lens group G3 having, in order from the object side, a first segment group G31 having positive refractive power and a second segment group G32; the second segment group G32 being mType: GrantFiled: August 29, 2014Date of Patent: April 18, 2017Assignee: Nikon CorporationInventor: Masashi Yamashita
-
Patent number: 9617716Abstract: A work vehicle includes: a hydraulic pump driven by an engine; a rotational speed detection unit that detects an actual rotational speed of the engine; an exhaust gas purification device that purifies nitrogen oxide in exhaust gas discharged from the engine using a reducing agent solution stored in a reducing agent tank; a torque control unit that decreases output torque of the engine according to decrease of a detected remaining amount of the reducing agent solution; and a storage device that stores a threshold value not less than an engine rotational speed at which the hydraulic pump starts discharge, wherein when the actual rotational speed of the engine is not more than the threshold value, the torque control unit does not decrease the output torque of the engine regardless of the remaining amount of the reducing agent solution detected by the remaining amount detection device.Type: GrantFiled: October 3, 2014Date of Patent: April 11, 2017Assignee: KCM CorporationInventors: Koji Hyodo, Atsushi Shimazu, Masashi Yamashita, Tetsuji Tanaka, Isamu Aoki, Shoroku Kawahara
-
Patent number: 9498623Abstract: A rehabilitation system that assists an action of a paretic arm due to brain damage, such as a stroke, includes: a detecting unit configured to detect an assist action that a healthy arm assists the paretic arm; an assist unit configured to cause the paretic arm to carry out bending and stretching actions; an adjustment unit configured to adjust an operation timing, operation speed, bending load or stretching load of the assist unit in response to detection of the assist action by the detecting unit; and a control unit configured to cause the assist unit to operate in accordance with the operation timing, operation speed, bending load or stretching load, adjusted by the adjustment unit.Type: GrantFiled: February 4, 2015Date of Patent: November 22, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shingo Shimoda, Fady SK Shibata Alnajjar, Vincent Berenz, Hitoshi Yamada, Masashi Yamashita, Takashi Izuo, Soya Takagi
-
Publication number: 20160318426Abstract: A vehicle seat having a seat cushion and ottoman pillars attached to the seat cushion, the seat cushion can be formed in a compact manner. The vehicle seat (S) comprises a cushion frame (F1) including a pair of cushion side frames (85), a cushion front member (86) connecting front ends of the cushion side frames with each other and a cushion rear member (87). The cushion front member is provided with a pair of recesses (143) extending in a fore and aft direction, and a pair of pillar support portions (141) extending in the fore and aft direction are received in and bonded to the respective recesses, the ottoman including a pair of ottoman pillars (135) inserted into the respective pillar support portions.Type: ApplicationFiled: December 16, 2014Publication date: November 3, 2016Inventors: Shinya AITA, Hirotaka TAKEI, Masahiko YAMAMOTO, Shingo KIMATA, Shigekazu OTAKE, Takahiro MITSUI, Masashi YAMASHITA
-
Patent number: 9383667Abstract: An electrostatic latent image developing toner includes toner particles. Each of the toner particles includes a toner core containing a binder resin and a releasing agent, and a shell layer coating the toner core. The releasing agent has a melting point Mpr of no less than 50° C. and no greater than 100° C. The releasing agent has a number average dispersion diameter of no less than 30 nm and no greater than 500 nm. The shell layer is made from a resin including a unit derived from a monomer of a thermosetting resin. The thermosetting resin is one or more amino resins from among a melamine resin, a urea resin, and a glyoxal resin.Type: GrantFiled: September 25, 2014Date of Patent: July 5, 2016Assignee: KYOCERA Document Solutions Inc.Inventors: Toshiki Takemori, Masashi Yamashita, Hiroki Uemura, Yukinori Nakayama, Masaki Okita