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公开(公告)号：US11880073B2
公开(公告)日：2024-01-23
申请号：US17421268
申请日：2019-11-21
Applicant: NTT ADVANCED TECHNOLOGY CORPORATION
Inventor： Shuichiro Asakawa , Kenta Arai , Etsu Hashimoto
CPC classification number: G02B6/3866 , B05B17/0615 , B05B7/0012 , B05B17/0646
Abstract: An optical connector cleaning tool includes a cleaning portion (101), a container (102) configured to store a cleaning liquid (121), and an atomizer (103) configured to atomize the cleaning liquid (121) stored in the container (102) by ultrasonic atomization. The atomizer (103) includes an atomizing separation portion (105) configured to cover a liquid supply port (104) and pass not a liquid but mist. In addition, the cleaning tool includes a control circuit (107) configured to control an operation time of the atomizer (103) by a set time.
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公开(公告)号：US20230221499A1
公开(公告)日：2023-07-13
申请号：US17996576
申请日：2020-12-25
Applicant: NTT ADVANCED TECHNOLOGY CORPORATION
Inventor： Etsu HASHIMOTO , Kazutoshi ANDO , Terumasa KAMOUCHI
CPC classification number: G02B6/3866 , B08B1/006 , B08B1/008
Abstract: An optical connector cleaning tool includes a tip (44) for cleaning in a distal end portion. The tip (44) has a distal end face (51) in which a delivery hole (53) and a winding hole (54) for a cleaning medium are formed, and has an outer circumferential surface (52). The distal end face (51) has a first inclined surface (56) and a second inclined surface (57) forming the distal end portion of the tip (44) into a mountain shape in cross section, and has a convex curved surface (58) for connecting them to the outer circumferential surface (52). The first inclined surface (56) crosses an axis of the tip (44), and inclines at an angle smaller than an inclination angle of a distal end face of an APC connector. The second inclined surface (57) is formed such that an offset line (61) (a ridgeline) at the distal end of the tip (44) is positioned between the axis of the tip (44) and the winding hole (54), and inclines at an angle equal to or larger than the inclination angle of the distal end face of the APC connector. The convex curved surface (58) inclines at an angle equal to or larger than the inclination angle of the distal end face of the APC connector. This makes it possible to provide an optical connector cleaning tool capable of properly cleaning both a PC connector and an APC connector without using a rotation mechanism for rotating a tip.
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公开(公告)号：US20220197870A1
公开(公告)日：2022-06-23
申请号：US17644174
申请日：2021-12-14
Applicant: NTT Advanced Technology Corporation
Inventor： Akinori YAMAMOTO , Yusuke Tsujikawa , Takashi Hattori , Shuichi Miyazaki
Abstract: A scenario execution system includes a scenario execution terminal, a log management device, and a storage device. The scenario execution terminal includes a scenario execution unit and an event notification unit. The scenario execution unit executes a scenario file having a scenario indicating a procedure of operations in the scenario execution terminal described therein. The event notification unit notifies the log management device of information on an event generated by the scenario execution unit executing the scenario file. The log management device includes a log recording unit that receives the information on the event from the scenario execution terminal and records log data having the received information on the event set therein on the storage device. The storage device adds, to the log data, information uniquely generated on the basis of log data recorded before such log data and stores resultant log data.
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公开(公告)号：US20220026642A1
公开(公告)日：2022-01-27
申请号：US17421268
申请日：2019-11-21
Applicant: NTT ADVANCED TECHNOLOGY CORPORATION
Inventor： Shuichiro ASAKAWA , Kenta ARAI , Etsu HASHIMOTO
Abstract: An optical connector cleaning tool includes a cleaning portion (101), a container (102) configured to store a cleaning liquid (121), and an atomizer (103) configured to atomize the cleaning liquid (121) stored in the container (102) by ultrasonic atomization. The atomizer (103) includes an atomizing separation portion (105) configured to cover a liquid supply port (104) and pass not a liquid but mist. In addition, the cleaning tool includes a control circuit (107) configured to control an operation time of the atomizer (103) by a set time.
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公开(公告)号：US10205296B2
公开(公告)日：2019-02-12
申请号：US15616270
申请日：2017-06-07
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION , HAMAMATSU PHOTONICS K.K. , NTT Advanced Technology Corporation
Inventor： Seiji Toyoda , Yuzo Sasaki , Takashi Sakamoto , Joji Yamaguchi , Tadashi Sakamoto , Koei Yamamoto , Masatoshi Fujimoto , Mahiro Yamada , Shogo Yagi , Yukihiko Ushiyama , Eiichi Sugai , Koji Yoneyama , Kazuo Fujiura
Abstract: Provided is a swept light source including one end surface coupled to a wavelength filter constituted of a diffraction grating and an end mirror via a light deflector and another end surface including a gain medium facing an output coupling mirror and which configures a laser cavity between the end mirror and the output coupling mirror, wherein a drive voltage having an AC voltage on which a DC bias voltage is superimposed is output from a control voltage source of the light deflector to an electrode pair of an electro-optic crystal, light is radiated from a light emitter to the electro-optic crystal, and incident light from the gain medium incident along an optical axis perpendicular to a direction of an electric field formed by the control voltage is deflected in a direction parallel to the electric field, so that wavelength sweeping is performed.
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Patent Agency Ranking
公开(公告)号：US20180137948A1
公开(公告)日：2018-05-17
申请号：US15576116
申请日：2016-07-20
Applicant: NTT Advanced Technology Corporation
Inventor： Satoshi ICHIMARU , Masatoshi HATAYAMA , Masaharu NISHIKINO , Masahiko ISHINO
Abstract: To suppress the breakage of a mirror for reflecting high-intensity EUV light, an EUV multilayer mirror presenting a Bragg diffraction effect is formed by a pile of a plurality of heavy-element layers (102) and a plurality of light-element layers (103) disposed on a substrate (101), wherein the light-element layers and the heavy-element layers are alternately deposited. The heavy-element layers (102) contain niobium as a main component, and the light-element layers (103) contain silicon as a main component. For example, the heavy-element layers (102) made of niobium and the light-element layers (103) made of silicon are alternately deposited on the substrate (101) made of single-crystal silicon.
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公开(公告)号：US20170358899A1
公开(公告)日：2017-12-14
申请号：US15616270
申请日：2017-06-07
Applicant: Nippon Telegraph and Telephone Corporation , Hamamatsu Photonics K.K. , NTT Advanced Technology Corporation
Inventor： Seiji TOYODA , Yuzo Sasaki , Takashi Sakamoto , Joji Yamaguchi , Tadashi Sakamoto , Koei Yamamoto , Masatoshi Fujimoto , Mahiro Yamada , Shogo Yagi , Yukihiko Ushiyama , Eiichi Sugai , Koji Yoneyama , Kazuo Fujiura
CPC classification number: H01S3/1075 , G01B9/02004 , G01B9/02091 , H01S3/08009 , H01S3/107 , H01S5/06216 , H01S5/141 , H01S5/143
Abstract: Provided is a swept light source including one end surface coupled to a wavelength filter constituted of a diffraction grating and an end mirror via a light deflector and another end surface including a gain medium facing an output coupling mirror and which configures a laser cavity between the end mirror and the output coupling mirror, wherein a drive voltage having an AC voltage on which a DC bias voltage is superimposed is output from a control voltage source of the light deflector to an electrode pair of an electro-optic crystal, light is radiated from a light emitter to the electro-optic crystal, and incident light from the gain medium incident along an optical axis perpendicular to a direction of an electric field formed by the control voltage is deflected in a direction parallel to the electric field, so that wavelength sweeping is performed.
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公开(公告)号：US20170299698A1
公开(公告)日：2017-10-19
申请号：US15513632
申请日：2016-01-06
Applicant: NTT ADVANCED TECHNOLOGY CORPORATION
Inventor： Shogo Yagi , Fumio Saito , Kazunori Naganuma , Eiichi Sugai , Tohru Kodaira , Akira Sawaguchi , Hideki Hagino , Takeshi Watanabe , Noriyuki Ishidu , Hiizu Takemura
CPC classification number: G01S7/4814 , G01C3/08 , G01C7/06 , G01C15/002 , G01S17/10 , G01S17/36
Abstract: Provided is a position locating instrument for a position locating method in which position locating instruments that transmit and receive light beams are arranged in series connection. The position locating instruments reduce error factors and improve measurement accuracy by providing all or some of necessary position and attitude parameters. The position locating instrument has at least one light emission port through which light from a wavelength-changeable light source is emitted; and at least one light receiving port that receives light emitted or reflected by an adjacent position locating instrument. The light emitted from the light emission port has a fanlike pattern and has an emission angle varying, as a monotonic function of a wavelength of the light, in a direction perpendicular to a direction in which the light spreads in the fanlike pattern.
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29.发明申请OPTICAL CONNECTOR CLEANING TOOL AND OPTICAL CONNECTOR END FACE OBSERVATION SYSTEM 有权光学连接器清洁工具和光学连接器端面观察系统公开(公告)号：US20150253516A1
公开(公告)日：2015-09-10
申请号：US14642659
申请日：2015-03-09
Inventor： Toru Miura , Masayuki Murakami , Masaru Kobayashi , Yuichi Higuchi , Joji Yamaguchi
CPC classification number: G02B6/3866 , G01M11/31
Abstract: An optical connector cleaning tool includes a cylindrical connecting portion to which an optical connector is connected, a cleaning unit configured to guide a cleaning thread to a coupling end face of an optical connector plug, and an optical unit having an optical path reaching the optical connector plug. The optical unit includes a lens arranged in a position facing the coupling end face to form one end portion of an optical system, and having a missing portion extending in an optical-axis direction, and an image sensor positioned at the other end of the optical system. The cleaning unit includes a rod-like cleaning tip having a thread passage through which the cleaning thread passes. The cleaning tip is inserted into a hollow portion of the lens having the missing portion extending in the optical-axis direction, such that the cleaning tip is movable in a longitudinal direction thereof.
Abstract translation: 光连接器清洁工具包括连接有光连接器的圆柱形连接部分，被配置为将清洁线引导到光连接器插头的耦合端面的清洁单元和具有到达光连接器的光路的光学单元 插头。 光学单元包括布置在面向耦合端面的位置的透镜，以形成光学系统的一个端部，并且具有沿光轴方向延伸的缺失部分，以及位于光学器件的另一端的图像传感器 系统。 清洁单元包括具有清洁线通过的螺纹通道的杆状清洁尖端。 清洁头被插入到具有沿光轴方向延伸的缺损部分的透镜的中空部分中，使得清洁尖端能够在其纵向方向上移动。
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公开(公告)号：US20030097559A1
公开(公告)日：2003-05-22
申请号：US10294005
申请日：2002-11-13
Inventor： Akihiro Shimizu , Mitsuyoshi Shibuya
IPC: H04L009/00
CPC classification number: H04L9/3226 , H04L9/3236 , H04L9/3271
Abstract: A person to be authenticated generates authentication data for this time and authentication data for next time using a one-way function, based on a user ID, a password and a random number, and performs an exclusive OR operation on these, to thereby encrypt the data while associating the both parameters with each other, and transmits these data together with the own user ID to an authenticating person. The authenticating person receives the aforesaid three informations, compares a validity confirmation parameter calculated by using a one-way function based on the authentication data for this time with a authentication parameter registered in the previous authentication phase, and when these parameters agree with each other, judges that authentication is approved, and registers the authentication data for next time as the authentication parameter for next time.
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