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1. 发明授权

US4726640A Optical deflector with a pneumatic and a magnetic bearing 失效
标题翻译：光学偏转器带有气动和磁性轴承
公开(公告)号：US4726640A
公开(公告)日：1988-02-23
申请号：US911110
申请日：1986-09-24
申请人： Akihiko Iwama , Hiroki Tajima , Mitsuo Suzuki
发明人： Akihiko Iwama , Hiroki Tajima , Mitsuo Suzuki
IPC分类号： F16C39/06 , G02B7/182 , G02B26/12 , H02K5/16 , H02K7/09 , G02B26/08
CPC分类号： F16C32/0402 , F16C17/026 , F16C32/0427 , G02B26/121 , G02B7/1821 , H02K5/1677 , H02K7/09 , F16C2370/22
摘要： An optical deflector for deflecting a laser beam from a laser by rotating a polygon mirror uses a dynamic pressure pneumatic bearing as a radial bearing and a magnetic bearing as a thrust bearing. The deflector includes a hollow rotor rotatable integrally with the mirror, a stationary shaft received in said hollow rotor, a casing member accommodating the rotor and stationary shaft, and an annular rotor magnet assembly mounted on the outer periphery of the rotor. A first rotary magnet is mounted in an upper end portion of a rotary shaft and a first stationary magnet in an upper end portion of the stationary shaft in such a manner as to face each other with the same polarity, a repulsive force acting between the two magnets serving as a thrust magnetic bearing. A second stationary magnet is arranged to face the first rotary magnet with the same polarity. Further, a second rotary magnet is mounted in a lower end portion of the rotary shaft and a third stationary magnet in a lower end portion of the stationary shaft in such a manner as to face each other with the same polarity.
摘要翻译：用于通过旋转多面镜从激光器偏转激光束的光学偏转器使用动压气动轴承作为径向轴承和磁轴承作为推力轴承。偏转器包括与反射镜一体旋转的中空转子，容纳在所述中空转子中的固定轴，容纳转子和固定轴的壳体构件以及安装在转子的外周上的环形转子磁体组件。第一旋转磁体以相同的极性彼此面对的方式安装在旋转轴的上端部和固定轴的上端部中的第一固定磁体，作用在两者之间的排斥力磁铁作为推力磁轴承。第二固定磁体被布置成以相同的极性面向第一旋转磁体。此外，第二旋转磁体以相同极性彼此面对的方式安装在旋转轴的下端部和固定轴的下端部中的第三静止磁体。

2. 发明申请

US20030031855A1 Tissue paper used for heat-sensitive stencil sheet, heat-sensitive stencil sheet, and method of making the same 有权
标题翻译：用于热敏蜡纸，热敏蜡纸的组织纸及其制造方法
公开(公告)号：US20030031855A1
公开(公告)日：2003-02-13
申请号：US10077455
申请日：2002-02-14
申请人： Ricoh Company, Ltd. and Tohoku Ricoh Company, Ltd.
发明人： Hideyuki Yamaguchi
IPC分类号： B32B005/14
CPC分类号： B41N1/241 , B41N1/243 , D21H25/06 , D21H27/30 , Y10T428/24802 , Y10T428/24826 , Y10T428/249924 , Y10T428/249953 , Y10T428/249959 , Y10T428/31993
摘要： A tissue paper used for heat sensitive stencil sheet to be used for a heat-sensitive stencil sheet comprising natural fibers, synthetic fibers, or their mixture, which being impregnated with an ionizing radiation curable type of resin, and a heat-sensitive stencil sheet having a thermoplastic resin film being bonded thereto, wherein, at surface of one side of the resin film, there is provided the tissue paper used for heat-sensitive stencil sheet, which is that being bonded the thermoplastic resin film by point-bonding with using an ionizing radiation-curable resin, and there is provided an anti-sticking layer on the other side of the thermoplastic resin film.
摘要翻译：用于热敏蜡纸的薄纸用于热敏蜡纸，包括用电离辐射固化型树脂浸渍的天然纤维，合成纤维或其混合物，以及热敏蜡纸，其具有粘合有热塑性树脂薄膜的树脂薄膜的一侧的表面设有用于热敏蜡纸的薄纸，其是通过点粘合将热塑性树脂薄膜与电离辐射固化树脂，并且在热塑性树脂膜的另一侧上设置有防粘层。

3. 发明授权

US11639400B2 Active energy ray curable liquid, method of manufacturing fabrication object, resin fabrication object, and gel fabrication object 有权
公开(公告)号：US11639400B2
公开(公告)日：2023-05-02
申请号：US16546818
申请日：2019-08-21
申请人： RICOH COMPANY, LTD.
发明人： Takashi Matsumura , Tatsuya Niimi , Takuya Saito
IPC分类号： B29C64/188 , C08F20/06 , B29C64/264 , B29C64/129 , B33Y10/00 , B33Y70/00
摘要： An active energy ray curable liquid contains an unsaturated acid monomer and a metal salt.

4. 发明授权

US11635618B2 Optical element, display system, and mobile object 有权
公开(公告)号：US11635618B2
公开(公告)日：2023-04-25
申请号：US16966706
申请日：2019-04-15
申请人： RICOH COMPANY, LTD.
发明人： Kento Nakamura , Shimpei Ogino , Yuuki Satoh
IPC分类号： G02B26/08 , G02B27/01 , B60K35/00 , G02B3/00 , G02B26/10
摘要： A display system includes an optical element through which light diverges and an imaging optical system configured to form an image by projecting diverging light diverging through the optical element. In the display system, the image formed by the imaging optical system is visually recognized by a viewer, and a condition in an equation tan 0≥(T×B)/(S×O) is satisfied, where θ denotes a divergence angle of the optical element, T denotes distance between the image forming optical system and the formed image, B denotes a range of an eye box that is an area through which the formed image can visually be recognized, S denotes distance between the formed image and a viewpoint of the viewer of the formed image, and O denotes distance between the optical element and the image forming optical system. In the above equation, each distance indicates length of an optical path that passes through a center of an image formed by the light when an object is observed from a reference eyepoint.

5. 发明授权

US11629263B2 Processing fluid, ink set, inkjet printing device, and inkjet printing method 有权
公开(公告)号：US11629263B2
公开(公告)日：2023-04-18
申请号：US17130725
申请日：2020-12-22
申请人： RICOH COMPANY, LTD.
发明人： Satoyuki Sekiguchi , Toshiyuki Kobashi
IPC分类号： C09D11/38 , C09D11/54 , B41M5/00 , C09D11/102
摘要： A processing fluid contains a metal ion and an organopolysiloxane, wherein the content of the metal ion in the processing fluid is from 0.5 to 50 g/L and the organopolysiloxane has a weight average molecular of from 5,000 to 500,000.

6. 发明授权

US11629262B2 Liquid composition set, cured product forming method, and liquid composition 有权
公开(公告)号：US11629262B2
公开(公告)日：2023-04-18
申请号：US16984294
申请日：2020-08-04
申请人： RICOH COMPANY, LTD.
发明人： Takao Hiraoka
IPC分类号： C09D11/30 , C09D11/107 , C09D11/54
摘要： In accordance with some embodiment of the present invention, a liquid composition set is provided. The liquid composition set includes a first liquid composition and a second liquid composition. The first liquid composition comprises: a compound represented by general formula (1): where X and Y each independently represent a functional group, and at least one of X and Y represents an electron-withdrawing functional group; and an acidic substance. The second liquid composition comprises a compound having vinyl group or acryloyl group.

7. 发明授权

US11626111B2 Information processing system, information processing method, and information processing apparatus 有权
公开(公告)号：US11626111B2
公开(公告)日：2023-04-11
申请号：US17023468
申请日：2020-09-17
申请人： Ricoh Company, Ltd.
发明人： Shun Yoshimi , Keisuke Terasaki
IPC分类号： G10L15/22 , G10L15/30
摘要： An information processing system includes circuitry configured to acquire voice data; supplement the voice data with relating information so as to generate an output request in which at least an output device to output an output target is identified based on the voice data; transmit the output request to the identified output device; and cause the output device to output the output target contained in the output request.

8. 发明授权

US11618250B2 Liquid ejection apparatus, liquid ejection system, and liquid ejection method 有权
公开(公告)号：US11618250B2
公开(公告)日：2023-04-04
申请号：US17069103
申请日：2020-10-13
申请人： Ricoh Company, Ltd.
发明人： Tsuyoshi Nagasu , Tomoaki Hayashi , Masayuki Sunaoshi , Koichi Kudo , Masahiro Mizuno
IPC分类号： B41J2/045 , B41J2/21 , B41J15/04 , B41J25/00 , G01B11/00
摘要： A liquid ejection apparatus includes a plurality of liquid ejection head units that eject liquid onto a conveyed object at different positions along a conveying path; a first support member and a second support member that are respectively provided at an upstream side and a downstream side of a landing position of liquid ejected by a corresponding liquid ejection head unit; a first detection unit that is installed between the first support member and the second support member and is configured to detect a position of the conveyed object in a direction orthogonal to a conveying direction of the conveyed object; a second detection unit that is installed upstream of the first detection unit; and a movement control unit that moves each liquid ejection head unit based on a plurality of detection results output by the first detection unit and/or the second detection unit.

9. 发明授权

US11599061B2 Image forming apparatus 有权
公开(公告)号：US11599061B2
公开(公告)日：2023-03-07
申请号：US17888489
申请日：2022-08-16
申请人： Ricoh Company, Ltd.
发明人： Kei Saito , Tomoya Adachi , Yuusuke Furuichi
IPC分类号： G03G21/20
摘要： An image forming apparatus includes a heating device including a heater, a developing device, and an airflow generation device. The heater includes a base, a heat generator, an electrode portion, and conductive portions. The conductive portions are disposed on one side and another side in a longitudinal direction in a heat generation region and spaced apart in a lateral direction intersecting the longitudinal direction. A maximum total value among total values of squares of current flowing in the conductive portions at longitudinal positions on the one side is larger than that on said another side. The developing device includes a rotating member and sliding portions. A sliding portion having highest temperature in operation is disposed on one side of the developing device being same as the one side of the heater in the longitudinal direction. The airflow generation device generates an airflow toward the one side of the developing device.

10. 发明申请

US20230066450A1 COMMUNICATION MANAGEMENT SYSTEM, COMMUNICATION SYSTEM, COMMUNICATION MANAGEMENT DEVICE, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM 有权
公开(公告)号：US20230066450A1
公开(公告)日：2023-03-02
申请号：US17984271
申请日：2022-11-10
申请人： Ricoh Company, Ltd.
发明人： Hiroshi HINOHARA , Shigeru NAKAMURA , Takeshi HOMMA , Yuichi KAWASAKI , Masashi OGASAWARA , Atsushi MIYAMOTO , Hideki SHIRO , Kenichiro MORITA
IPC分类号： H04L65/401 , G06F3/0354 , G06F3/042 , G06F3/04883 , H04L65/403
摘要： A communication management system manages a session in which a plurality of terminal apparatuses shares a stroke image. The communication management system includes circuitry configured to: manage stroke information including a plurality of pieces of stroke data representing the stroke image; receive, from a first terminal apparatus, group operation information for designating one or more pieces of stroke data, which are operation targets, from among the plurality of pieces of stroke data; and restrict, based on the group operation information, an operation regarding the one or more pieces of stroke data by a second terminal apparatus, which is different from the first terminal apparatus.

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