Patents by Inventor Kazushige Kawamura
Kazushige Kawamura 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: 20240154386Abstract: An optical transmitter according to one embodiment includes: a plurality of light emitting elements; a plurality of light receiving elements that monitor output lights from the respective plurality of light emitting elements; a housing that mounts the plurality of light emitting elements and the plurality of light receiving elements; and a wiring board which is mounted on the housing and which is provided with a first region having a pad electrically connected to the light emitting element and a second region disposed at a position lower than the first region and having a pad electrically connected to the light receiving element.Type: ApplicationFiled: June 11, 2021Publication date: May 9, 2024Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Device Innovations, Inc.Inventors: Satoshi YOSHIMURA, Masanobu KAWAMURA, Kazushige OKI, Kuniyuki ISHII, Fumihiro NAKAJIMA, Kazunobu KOBAYASHI
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Patent number: 10003711Abstract: A light irradiation device includes a light source, a light guide member, and a holding member. The light guide member includes an incident surface, an exit surface, and a held surface. The incident surface has an elongated shape in a main scanning direction and faces a light emitting surface of the light source. The light guide member includes a securing structure in each of both end portions in the main scanning direction, which are out of a light guide area of the light guide member. The securing structure in one end portion is an engagement lug structure protruding to penetrate into a through-hole of the holding member, including a lug on a leading end, and engaging the holding member. The securing structure on another end portion is a fastening structure having a fastening hole penetrated with a fastening member and being secured to the holding member with the fastening member.Type: GrantFiled: March 7, 2017Date of Patent: June 19, 2018Assignee: Ricoh Company, Ltd.Inventors: Akihiro Iwamatsu, Kazushige Kawamura, Takuya Kohda
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Patent number: 9988223Abstract: An automatic document feeding device includes a document tray, an ejection tray, and a document takeout port. The document tray is rotatably attached to a rotation fulcrum provided in a body of the automatic document feeder, to load a document. The document tray includes a first positioner and a second positioner. The first positioner is disposed at a front side of the body in a direction perpendicular to a document feed direction. The second positioner is disposed at a depth side of the body in the direction perpendicular to the document feed direction. The first positioner is disposed upstream from the rotation fulcrum in the document feed direction and above the document takeout port in the body. An upper portion and side surfaces of the first positioner in the direction perpendicular to the document feed direction are surrounded by the document tray in a closed state of the document tray.Type: GrantFiled: June 21, 2016Date of Patent: June 5, 2018Assignee: RICOH COMPANY, LTD.Inventors: Munekazu Hirata, Takayuki Andoh, Koji Hatayama, Kaoru Tada, Tatsuaki Nagano, Yasunobu Youda, Toshiyuki Horikawa, Yohei Osanai, Kazushige Kawamura, Takuji Kawai
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Patent number: 9819838Abstract: An automatic document feeding device includes a conveyance unit, an image reading unit, a color reference member, a moving assembly, and a drive source. The drive source includes a rotation output shaft to drive the conveyance unit and the moving assembly. The drive source changes the rotation output shaft from a forward rotation direction to a reverse rotation direction to reversely rotate the rotation output shaft to a set reverse rotation angle set in advance, according to a condition of conveyance of the document. In a rotation transmission route from the rotation output shaft to the moving assembly, the movement regulator is disposed in a first reverse rotation drive region from when a rotation direction of the rotation output shaft is changed to the reverse rotation direction to when a rotation angle of the rotation output shaft after the change in the reverse rotation direction reaches the set reverse rotation angle.Type: GrantFiled: June 2, 2016Date of Patent: November 14, 2017Assignee: RICOH COMPANY, LTD.Inventors: Koji Hatayama, Takayuki Andoh, Tatsuaki Nagano, Kaoru Tada, Munekazu Hirata, Kazushige Kawamura, Toshiyuki Horikawa, Takuji Kawai, Yohei Osanai, Yasunobu Youda
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Patent number: 9796252Abstract: A restricting device includes: a movable member that is capable of changing a posture with respect to a support member; and a buffer member that is fixed to the movable member, comes into contact with the support member in accordance with a posture change of the movable member, and restricts the posture of the movable member, wherein in the movable member, a mounting recess portion, an outlet port, a slip-off preventing piece, and a fitting piece are formed, and the buffer member has a fixing portion, an elastic portion, and a connecting portion, and in the elastic portion, a fitting recess portion is fitted is formed.Type: GrantFiled: October 28, 2016Date of Patent: October 24, 2017Assignee: Aisin Seiki Kabushiki KaishaInventors: Yoji Nagashima, Yoshitaka Ide, Kazushige Kawamura
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Publication number: 20170264770Abstract: A light irradiation device includes a light source, a light guide member, and a holding member. The light guide member includes an incident surface, an exit surface, and a held surface. The incident surface has an elongated shape in a main scanning direction and faces a light emitting surface of the light source. The light guide member includes a securing structure in each of both end portions in the main scanning direction, which are out of a light guide area of the light guide member. The securing structure in one end portion is an engagement lug structure protruding to penetrate into a through-hole of the holding member, including a lug on a leading end, and engaging the holding member. The securing structure on another end portion is a fastening structure having a fastening hole penetrated with a fastening member and being secured to the holding member with the fastening member.Type: ApplicationFiled: March 7, 2017Publication date: September 14, 2017Inventors: Akihiro IWAMATSU, Kazushige KAWAMURA, Takuya KOHDA
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Patent number: 9687781Abstract: This desulfurization device is for desulfurizing a discharge gas which contains sulfur oxides and which was discharged from a device for sulfuric acid production that includes a concentrated-sulfuric-acid production step in which sulfur trioxide gas obtained by oxidizing sulfur dioxide gas is absorbed in an aqueous sulfuric acid solution while supplying water thereto to thereby produce sulfuric acid having a concentration as high as 90 wt % or more but less than 99 wt %, the desulfurization device comprising: a desulfurization tower in which the sulfur oxides are removed from the discharge gas and, simultaneously therewith, dilute sulfuric acid is formed from the sulfur oxides; and a dilute sulfuric acid mixer which, in the concentrated-sulfuric-acid production step, mixes the dilute sulfuric acid with the aqueous sulfuric acid solution.Type: GrantFiled: October 25, 2013Date of Patent: June 27, 2017Assignee: Chiyoda CorporationInventors: Kazushige Kawamura, Dai Takeda, Eiji Awai, Noboru Takei, Masataka Uemura
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Publication number: 20170122021Abstract: A restricting device includes: a movable member that is capable of changing a posture with respect to a support member; and a buffer member that is fixed to the movable member, comes into contact with the support member in accordance with a posture change of the movable member, and restricts the posture of the movable member, wherein in the movable member, a mounting recess portion, an outlet port, a slip-off preventing piece, and a fitting piece are formed, and the buffer member has a fixing portion, an elastic portion, and a connecting portion, and in the elastic portion, a fitting recess portion is fitted is formed.Type: ApplicationFiled: October 28, 2016Publication date: May 4, 2017Applicant: AISIN SEIKI KABUSHISIKI KAISHAInventors: Yoji NAGASHIMA, Yoshitaka IDE, Kazushige KAWAMURA
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Patent number: 9609159Abstract: A sheet conveyance device includes a sheet mount on which a standard-sized sheet is mountable; a first conveyor to bring in the sheet from the mount, convey the sheet through a reverse conveyance path such that the sheet passes through a specific operation position, and eject the sheet into a sheet ejection area outside the mount; and a second conveyor to bring in a hard sheet with a higher bending rigidity than the sheet from one end of a straight conveyance path along a plane passing through the specific position of the reverse path, and eject the hard sheet conveyed along the straight path from another end of the straight path at a sheet ejection area side. The mount includes a hard sheet ejection port to let through at least a leading edge portion of the hard sheet to be ejected from the second conveyor in a sheet ejection direction.Type: GrantFiled: October 30, 2015Date of Patent: March 28, 2017Assignee: RICOH COMPANY, LTD.Inventors: Koji Hatayama, Yasunobu Youda, Yohei Osanai, Tatsuaki Nagano, Kazushige Kawamura, Toshiyuki Horikawa
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Patent number: 9571690Abstract: An image scanner, which is incorporated in an image forming apparatus, includes a stationary-document reading section, a moving-document reading section disposed at an angle to the stationary-document reading section, a reader movable between the stationary-document reading section and the moving-document reading section, and a reading element movable to different angles while contacting the stationary-document reading section and the moving-document reading section to selectively read a document placed on the stationary-document reading section and a document moving over the moving-document reading section. The image scanner further includes any one of position detector, a combination of a moving device and at least one position sensor, and a combination of at least one pressing member, a framework, and an angle changer.Type: GrantFiled: March 11, 2016Date of Patent: February 14, 2017Assignee: RICOH COMPANY, LTD.Inventors: Yohei Osanai, Yasunobu Youda, Tatsuaki Nagano, Takayuki Andoh, Kaoru Tada, Munekazu Hirata, Toshiyuki Horikawa, Kazushige Kawamura, Takuji Kawai, Koji Hatayama
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Publication number: 20160368728Abstract: An automatic document feeding device includes a document tray, an ejection tray, and a document takeout port. The document tray is rotatably attached to a rotation fulcrum provided in a body of the automatic document feeder, to load a document. The document tray includes a first positioner and a second positioner. The first positioner is disposed at a front side of the body in a direction perpendicular to a document feed direction. The second positioner is disposed at a depth side of the body in the direction perpendicular to the document feed direction. The first positioner is disposed upstream from the rotation fulcrum in the document feed direction and above the document takeout port in the body. An upper portion and side surfaces of the first positioner in the direction perpendicular to the document feed direction are surrounded by the document tray in a closed state of the document tray.Type: ApplicationFiled: June 21, 2016Publication date: December 22, 2016Applicant: Ricoh Company, Ltd.Inventors: Munekazu HIRATA, Takayuki ANDOH, Koji HATAYAMA, Kaoru TADA, Tatsuaki NAGANO, Yasunobu YOUDA, Toshiyuki HORIKAWA, Yohei OSANAI, Kazushige KAWAMURA, Takuji KAWAI
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Publication number: 20160360073Abstract: An automatic document feeding device includes a conveyance unit, an image reading unit, a color reference member, a moving assembly, and a drive source. The conveyance unit conveys a document to an image reading position. The image reading unit reads an image of the document. The color reference member faces the image reading unit and includes a white reference face to correct shading. The moving assembly relatively moves the image reading unit and the color reference member. The movement regulator regulates a relative movement of the image reading unit and the color reference member by the moving assembly. The drive source includes a common rotation output shaft to drive the conveyance unit and the moving assembly. The drive source changes the rotation output shaft from a forward rotation direction to a reverse rotation direction to reversely rotate the rotation output shaft to a set reverse rotation angle set in advance, according to a condition of conveyance of the document by the conveyance unit.Type: ApplicationFiled: June 2, 2016Publication date: December 8, 2016Applicant: Ricoh Company, Ltd.Inventors: Koji HATAYAMA, Takayuki ANDOH, Tatsuaki NAGANO, Kaoru TADA, Munekazu HIRATA, Kazushige KAWAMURA, Toshiyuki HORIKAWA, Takuji KAWAI, Yohei OSANAI, Yasunobu YOUDA
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Publication number: 20160277624Abstract: An image scanner, which is incorporated in an image forming apparatus, includes a stationary-document reading section, a moving-document reading section disposed at an angle to the stationary-document reading section, a reader movable between the stationary-document reading section and the moving-document reading section, and a reading element movable to different angles while contacting the stationary-document reading section and the moving-document reading section to selectively read a document placed on the stationary-document reading section and a document moving over the moving-document reading section. The image scanner further includes any one of position detector, a combination of a moving device and at least one position sensor, and a combination of at least one pressing member, a framework, and an angle changer.Type: ApplicationFiled: March 11, 2016Publication date: September 22, 2016Applicant: Ricoh Company, Ltd.Inventors: Yohei OSANAI, Yasunobu YOUDA, Tatsuaki NAGANO, Takayuki ANDOH, Kaoru TADA, Munekazu HIRATA, Toshiyuki HORIKAWA, Kazushige KAWAMURA, Takuji KAWAI, Koji HATAYAMA
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Publication number: 20160257578Abstract: Disclosed herein is a water treatment process for efficiently removing oils from oil-containing water. The water treatment process is a method for treating oil-containing water, comprising the steps of: preparing an oil-adsorbing material that is made of a lipophilic resin such as a pyridine resin and that has many pores in its surface and bears hydrophilic groups on an inner surface of the pores; and bringing oil-containing water into contact with the surface of the oil-adsorbing material. The step of preparing an oil-adsorbing material includes the step of converting some of hydrophobic groups, such as nitrogen-containing aromatic rings, on the inner surface of the pores to hydrophilic groups such as quaternized amine or sulfonic acid.Type: ApplicationFiled: July 15, 2014Publication date: September 8, 2016Inventors: Zhixiong You, Yoichi Umehara, Masayo Shinohara, Kazushige Kawamura, Takeshi Minami
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Publication number: 20160127590Abstract: A sheet conveyance device includes a sheet mount on which a standard-sized sheet is mountable; a first conveyor to bring in the sheet from the mount, convey the sheet through a reverse conveyance path such that the sheet passes through a specific operation position, and eject the sheet into a sheet ejection area outside the mount; and a second conveyor to bring in a hard sheet with a higher bending rigidity than the sheet from one end of a straight conveyance path along a plane passing through the specific position of the reverse path, and eject the hard sheet conveyed along the straight path from another end of the straight path at a sheet ejection area side. The mount includes a hard sheet ejection port to let through at least a leading edge portion of the hard sheet to be ejected from the second conveyor in a sheet ejection direction.Type: ApplicationFiled: October 30, 2015Publication date: May 5, 2016Applicant: RICOH COMPANY, LTD.Inventors: Koji HATAYAMA, Yasunobu YOUDA, Yohei OSANAI, Tatsuaki NAGANO, Kazushige KAWAMURA, Toshiyuki HORIKAWA
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Patent number: 9296283Abstract: A sunroof device comprising: a drive cable having driving teeth arranged in a longitudinal direction and being driven to move in the vehicle front-rear direction along a guiderail; and a sliding member that controls the posture of a functional bracket together with a movable panel, in conjunction with movement in the vehicle front-rear direction. The sunroof device also comprises: driven teeth formed on the sliding member, that are meshed with the driving teeth and restrict relative movement of the drive cable and the sliding member in the vehicle front-rear direction; and a mounted portion formed on the guiderail. The drive cable and the sliding member, in which the driving teeth are meshed with the driven teeth, are mounted on the mounted portion, and the mounted portion holds these in the vehicle lateral and vertical directions.Type: GrantFiled: May 14, 2013Date of Patent: March 29, 2016Assignee: Aisin Seiki Kabushiki KaishaInventors: Yoji Nagashima, Yusuke Kokubo, Shinichi Hiramatsu, Yoshitaka Ide, Kazushige Kawamura
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Publication number: 20150298056Abstract: This desulfurization device is for desulfurizing a discharge gas which contains sulfur oxides and which was discharged from a device for sulfuric acid production that includes a concentrated-sulfuric-acid production step in which sulfur trioxide gas obtained by oxidizing sulfur dioxide gas is absorbed in an aqueous sulfuric acid solution while supplying water thereto to thereby produce sulfuric acid having a concentration as high as 90 wt % or more but less than 99 wt %, the desulfurization device comprising: a desulfurization tower in which the sulfur oxides are removed from the discharge gas and, simultaneously therewith, dilute sulfuric acid is formed from the sulfur oxides; and a dilute sulfuric acid mixer which, in the concentrated-sulfuric-acid production step, mixes the dilute sulfuric acid with the aqueous sulfuric acid solution.Type: ApplicationFiled: October 25, 2013Publication date: October 22, 2015Inventors: Kazushige Kawamura, Dai Takeda, Eiji Awai, Noboru Takei, Masataka Uemura
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Publication number: 20150130229Abstract: A sunroof device comprising: a drive cable having driving teeth arranged in a longitudinal direction and being driven to move in the vehicle front-rear direction along a guiderail; and a sliding member that controls the posture of a functional bracket together with a movable panel, in conjunction with movement in the vehicle front-rear direction. The sunroof device also comprises: driven teeth formed on the sliding member, that are meshed with the driving teeth and restrict relative movement of the drive cable and the sliding member in the vehicle front-rear direction; and a mounted portion formed on the guiderail. The drive cable and the sliding member, in which the driving teeth are meshed with the driven teeth, are mounted on the mounted portion, and the mounted portion holds these in the vehicle lateral and vertical directions.Type: ApplicationFiled: May 14, 2013Publication date: May 14, 2015Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Yoji Nagashima, Yusuke Kokubo, Shinichi Hiramatsu, Yoshitaka Ide, Kazushige Kawamura
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Patent number: 8663594Abstract: An exhaust gas treating method removes sulfur dioxide from exhaust gas containing at least sulfur dioxide and mercury by bringing the exhaust gas into contact with absorption liquid. Persulfate is added into the absorption liquid or alternatively, iodine gas is added to the exhaust gas before the exhaust gas is brought into contact with the absorption liquid. A high removal rate for both sulfur dioxide and mercury is stably maintained if the load of power generation and the composition of exhaust gas fluctuate.Type: GrantFiled: March 5, 2008Date of Patent: March 4, 2014Assignee: Chiyoda CorporationInventors: Kazushige Kawamura, Dai Takeda, Eiji Awai, Akira Kumagai
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Patent number: 8600288Abstract: An image forming apparatus includes an image forming unit, a first sheet stack portion, a sheet output section, and a post processing unit. The image forming unit forms an image on a sheet. The first sheet stack portion is provided at an upper face of the image forming unit. The sheet output section outputs the sheet on which the image is formed by the image forming unit from one side of the image forming apparatus to the first sheet stack portion. The post processing unit is provided adjacent to a lateral side of the image forming unit at an upstream side of the sheet output section to execute post processing on the sheet. A sheet subjected to post-processing by the post-processing unit is output to the first sheet stack portion from the same direction as a sheet not subjected to post-processing by the post-processing unit.Type: GrantFiled: December 23, 2008Date of Patent: December 3, 2013Assignee: Ricoh Company, Ltd.Inventors: Takamasa Shiraki, Kazushige Kawamura, Yoshihide Ohta, Takayuki Andoh, Masato Ogawa, Takuji Takahashi, Tetsuya Fujioka, Yasunobu Youda, Kohji Hatayama