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1. 发明授权

US10714888B2 Pulsed electromagnetic-wave generator and measuring apparatus 有权
公开(公告)号：US10714888B2
公开(公告)日：2020-07-14
申请号：US16292381
申请日：2019-03-05
申请人： Toshiyuki Ikeoh , Yasuhiro Higashi , Yoshio Wada , Takumi Satoh , Hiroaki Minamide , Kouji Nawata , Yuma Takida
发明人： Toshiyuki Ikeoh , Yasuhiro Higashi , Yoshio Wada , Takumi Satoh , Hiroaki Minamide , Kouji Nawata , Yuma Takida
IPC分类号： H01S3/16 , H01S3/11 , G02F1/355 , H01S3/00
摘要： A pulsed electromagnetic-wave generator includes an excitation light source, a laser resonator, a pulse generating unit, and a wavelength converting unit. Excitation light from the excitation light source enters the laser resonator. The pulse generating unit is configured to generate a pulsed light group including at least two or more pulses with different frequencies (ω) and different oscillation timings (t) in one excitation process of the excitation light source, an oscillation frequency difference (Δω) between the pulses in the pulsed light group being an integral multiple of a Free Spectral Range (FSR) of the laser resonator. The pulsed light group enters the wavelength converting unit. The wavelength converting unit is configured to generate a pulsed electromagnetic wave in which a wavelength of each pulse in the pulsed light group is converted.

2. 发明申请

US20190280454A1 PULSED ELECTROMAGNETIC-WAVE GENERATOR AND MEASURING APPARATUS 审中-公开
公开(公告)号：US20190280454A1
公开(公告)日：2019-09-12
申请号：US16292381
申请日：2019-03-05
申请人： Toshiyuki IKEOH , Yasuhiro Higashi , Yoshio Wada , Takumi Satoh , Hiroaki Minamide , Kouji Nawata , Yuma Takida
发明人： Toshiyuki IKEOH , Yasuhiro Higashi , Yoshio Wada , Takumi Satoh , Hiroaki Minamide , Kouji Nawata , Yuma Takida
IPC分类号： H01S3/11 , H01S3/16 , H01S3/00 , G02F1/355
摘要： A pulsed electromagnetic-wave generator includes an excitation light source, a laser resonator, a pulse generating unit, and a wavelength converting unit. Excitation light from the excitation light source enters the laser resonator. The pulse generating unit is configured to generate a pulsed light group including at least two or more pulses with different frequencies (ω) and different oscillation timings (t) in one excitation process of the excitation light source, an oscillation frequency difference (Δω) between the pulses in the pulsed light group being an integral multiple of a Free Spectral Range (FSR) of the laser resonator. The pulsed light group enters the wavelength converting unit. The wavelength converting unit is configured to generate a pulsed electromagnetic wave in which a wavelength of each pulse in the pulsed light group is converted.

3. 发明授权

US10481467B2 Terahertz wave generation apparatus and inspection apparatus 有权
公开(公告)号：US10481467B2
公开(公告)日：2019-11-19
申请号：US15982214
申请日：2018-05-17
申请人： Takumi Satoh , Yasuhiro Higashi , Yoshio Wada , Toshiyuki Ikeoh , Yoshiharu Urata
发明人： Takumi Satoh , Yasuhiro Higashi , Yoshio Wada , Toshiyuki Ikeoh , Yoshiharu Urata
IPC分类号： G02F1/35 , G01N21/3586 , G02F3/02
摘要： A terahertz wave generation apparatus includes a plurality of laser light sources configured to generate laser beams respectively having different wavelengths; and a terahertz wave generating element configured to receive the laser beams having different wavelengths and generate a terahertz wave from the laser beams. The plurality of laser light sources include fiber laser light sources respectively including parameters that can be controlled independently, and the terahertz wave generating element includes a nonlinear optical crystal.

4. 发明授权

US10626842B2 Laser device, ignition device, and internal combustion engine 有权
公开(公告)号：US10626842B2
公开(公告)日：2020-04-21
申请号：US15988166
申请日：2018-05-24
申请人： Toshiyuki Ikeoh , Kentaroh Hagita , Naoto Jikutani , Yasuhiro Higashi , Kazuma Izumiya
发明人： Toshiyuki Ikeoh , Kentaroh Hagita , Naoto Jikutani , Yasuhiro Higashi , Kazuma Izumiya
IPC分类号： F02P23/04 , H01S3/00 , H01S5/42 , H01S3/113 , H01S3/0941 , G02B27/09 , H01S3/094 , H01S3/117 , H01S3/16 , H01S3/06 , H01S3/08
CPC分类号： F02P23/04 , G02B27/09 , H01S3/00 , H01S3/0941 , H01S3/094003 , H01S3/113 , H01S3/117 , H01S3/1611 , H01S3/1623 , H01S5/42 , H01S3/0602 , H01S3/08 , H01S2303/00
摘要： A laser device includes a light source device including a semiconductor laser; and a laser cavity irradiated with light from the light source device and including a saturable absorber. A beam waist diameter r of the light that irradiates the laser cavity and an initial transmittance T0 of the saturable absorber satisfy a relationship of 7.75×T04−7.77×T03+3.13×T02+0.16×T0+0.74≤r≤2.62×T0+0.675.

5. 发明授权

US08937982B2 Surface-emitting laser element, surface-emitting laser array, optical scanning apparatus, image forming apparatus, and method of manufacturing surface-emitting laser element 有权
标题翻译：表面发射激光元件，表面发射激光器阵列，光学扫描装置，成像装置和制造表面发射激光元件的方法
公开(公告)号：US08937982B2
公开(公告)日：2015-01-20
申请号：US13258596
申请日：2010-05-26
申请人： Yasuhiro Higashi , Kazuhiro Harasaka
发明人： Yasuhiro Higashi , Kazuhiro Harasaka
IPC分类号： B41J2/45 , H01S5/00 , H01S5/183 , H01S5/42 , H04N1/024 , H01S5/028 , H01S5/042 , H01S5/32 , H01S5/343
CPC分类号： H01S5/0042 , B82Y20/00 , H01S5/0282 , H01S5/0425 , H01S5/18313 , H01S5/18333 , H01S5/18338 , H01S5/1835 , H01S5/18355 , H01S5/3202 , H01S5/3434 , H01S5/3436 , H01S5/423 , H01S2301/166 , H01S2301/176 , H04N1/024
摘要： A method of manufacturing a surface-emitting laser element having a light-emitting mesa structure with an emitting area including a high-reflectance portion and a low-reflectance portion includes forming a layered body that includes a lower reflecting mirror, a cavity structure, and an upper reflecting mirror on a substrate; forming a first area on an upper surface of the layered body; forming a second area having the same size as the first area on the upper surface of the layered body; forming a light-emitting mesa structure and a monitoring-mesa structure by etching the first area and the second area, respectively; forming a confinement structure including a current passage area surrounded by an oxide in the light-emitting mesa structure and the monitoring-mesa structure; and measuring the size of the current passage area of the monitoring-mesa structure.
摘要翻译：一种具有发光台面结构的表面发射激光器元件的制造方法，具有包括高反射部分和低反射部分的发射区域，包括形成包括下反射镜，空腔结构和在基板上的上反射镜; 在层叠体的上表面上形成第一区域; 形成与层叠体的上表面上的第一区域相同尺寸的第二区域; 通过蚀刻第一区域和第二区域来分别形成发光台面结构和监视台面结构; 形成包含由发光台面结构中的氧化物包围的电流通道区域和监测台面结构的约束结构; 并测量监测台面结构的当前通过面积的大小。

6. 发明授权

US07061847B2 Optical recording method and apparatus for an optical storage medium 有权
公开(公告)号：US07061847B2
公开(公告)日：2006-06-13
申请号：US10633721
申请日：2003-08-05
申请人： Noboru Sasa , Tatsuya Tomura , Soh Noguchi , Tsutomu Satoh , Yasunobu Ueno , Yasuhiro Higashi
发明人： Noboru Sasa , Tatsuya Tomura , Soh Noguchi , Tsutomu Satoh , Yasunobu Ueno , Yasuhiro Higashi
IPC分类号： G11B7/00
CPC分类号： G11B7/00456 , G11B7/1263 , G11B7/1267
摘要： In an optical recording method and apparatus for an optical storage medium, a recording pulse pattern having a sequence of multiple pulses is used to record one of plural kinds of marks with different lengths on the storage medium through a variable-linear-velocity recording process or a constant-angular-velocity recording process. Two or more discrete write powers are individually allocated to the respective pulses of the recording pulse pattern. Each of the write powers, allocated to the respective pulses of the recording pulse pattern, is linearly varied in proportion with a change of one of the recording linear velocity and a recording position of the storage medium. The resulting recording pulse pattern is supplied to a pickup, and the pickup emits a light beam to the storage medium in accordance with the recording pulse pattern having the linearly varied write powers allocated to the respective pulses, so that one of the plural kinds of marks is recorded on the storage medium.

7. 发明授权

US06408719B1 Differential mechanism 有权
标题翻译：差异机制
公开(公告)号：US06408719B1
公开(公告)日：2002-06-25
申请号：US09654275
申请日：2000-09-01
申请人： Bunzo Seki , Akio Handa , Yasuhiro Higashi , Akio Senda , Kazushiro Inoue , Satoru Noguchi
发明人： Bunzo Seki , Akio Handa , Yasuhiro Higashi , Akio Senda , Kazushiro Inoue , Satoru Noguchi
IPC分类号： F16H4812
CPC分类号： F16H48/147 , F16H48/12 , Y10T74/19005
摘要： A differential mechanism comprises a differential case assembly having a casing body connected to a source of drive force and a cap member coupled with the casing body to cover one opened end of the casing body, a plurality of input blocks housed in the case assembly and being movable circumferentially of the case assembly in correspondence with rotation of the casing body, and a pair of output cam members for clamping the input blocks relatively slidably and being independently rotatable owing to a frictional force produced with respect to each of the input blocks to thereby initiate a differential motion on an output side of the differential mechanism. The input blocks are provided in at least two different types and having projected portions. The projected portions of the input blocks of one type have a first upper end width while the projected portions of the input blocks of another type have a second upper end width different from the first upper end width. The casing body has first and second axial grooves provided on an inner peripheral surface thereof such that they extend axially of the differential mechanism. The axial grooves are shaped complementary to the projected portions of the input blocks for meshing engagement therewith. This arrangement prevents misassembling of the differential mechanism.
摘要翻译：差速机构包括具有连接到驱动力源的壳体的壳体组件和与壳体连接以覆盖壳体主体的一个开口端的盖构件，容纳在壳体组件中的多个输入块与外壳主体的旋转相对应地可移动地围绕壳体组件移动;以及一对输出凸轮构件，用于相对滑动地夹持输入块并且由于相对于每个输入块产生的摩擦力而独立地可旋转，从而启动差动机构的输出侧的差速运动。输入块以至少两种不同类型提供并具有突出部分。一种类型的输入块的突出部分具有第一上端宽度，而另一类型的输入块的突出部分具有不同于第一上端宽度的第二上端宽度。壳体具有设置在其内周表面上的第一和第二轴向槽，使得它们在差速机构的轴向延伸。轴向凹槽成形为与输入块的突出部分互补，用于与其啮合。这种布置防止差速机构的错误组装。

8. 发明授权

US5998093A Optical information recording medium 失效
标题翻译：光信息记录介质
公开(公告)号：US5998093A
公开(公告)日：1999-12-07
申请号：US790433
申请日：1997-01-29
申请人： Tatsuya Tomura , Tsutomu Satoh , Noboru Sasa , Yasunobu Ueno , Yasuhiro Higashi
发明人： Tatsuya Tomura , Tsutomu Satoh , Noboru Sasa , Yasunobu Ueno , Yasuhiro Higashi
IPC分类号： C09B67/22 , G11B7/248 , G11B7/24
CPC分类号： G11B7/248 , C09B67/0035 , Y10S430/146
摘要： An optical information recording medium includes a substrate, and a recording layer formed on the substrate, the recording layer containing at least one compound selected from the group consisting of a compound represented by formula (I): ##STR1## and a compound represented by formula (II): ##STR2##
摘要翻译：光学信息记录介质包括基板和形成在基板上的记录层，所述记录层含有至少一种选自由式（I）表示的化合物和由式（II）表示的化合物组成的组中的化合物）：

9. 发明授权

US08555740B2 Transmission for internal combustion engine 有权
标题翻译：内燃机变速箱
公开(公告)号：US08555740B2
公开(公告)日：2013-10-15
申请号：US13051702
申请日：2011-03-18
申请人： Masataka Tanaka , Masahiko Tsuchiya , Yasuhiro Higashi
发明人： Masataka Tanaka , Masahiko Tsuchiya , Yasuhiro Higashi
IPC分类号： F16H3/08
CPC分类号： F16H3/16 , F16D11/10 , F16H3/006
摘要： A transmission for an internal combustion engine that allows a fit length between a dog and a dog hole to be made longer and gear splines to be made longer, without having to increase an axial length of the transmission. A transmission selectively performs gearshifting by using a shift fork to slidingly move a shift gear of the transmission axially and by using a dog clutch to engage the shift gear with, or disengage the shift gear from, an adjacent gear. When the shift gear slidingly moves, a gear-side spline portion of the shift gear slidingly moves over a shaft-side spline portion.
摘要翻译：一种用于内燃机的变速器，其允许使狗和狗孔之间的配合长度更长并且齿轮花纹更长，而不必增加变速器的轴向长度。变速器通过使用换档拨片轴向滑动地移动变速齿轮并通过使用爪式离合器来使变速齿轮与相邻齿轮啮合或使变速齿轮脱离接合而选择性地执行变速。当变速齿轮滑动移动时，变速齿轮的齿轮侧花键部分在轴侧花键部分上滑动移动。

10. 发明授权

US08120842B2 Wavelength conversion device, laser apparatus, image forming apparatus, and display apparatus 有权
标题翻译：波长转换装置，激光装置，图像形成装置和显示装置
公开(公告)号：US08120842B2
公开(公告)日：2012-02-21
申请号：US12532851
申请日：2008-02-06
申请人： Yasuhiro Higashi , Yasuhiro Satoh
发明人： Yasuhiro Higashi , Yasuhiro Satoh
IPC分类号： G02F1/23 , G02F1/35 , G02F2/02
CPC分类号： G02F1/3775
摘要： A wavelength conversion device enabling the stable output of high-power harmonic light is disclosed. The wavelength conversion device includes MgO:LiNbO3 (PPMgLN) having a periodic polarization reversed structure, and the +Z and −Z surfaces of the PPMgLN are covered with thin chrome (Cr) film. In the PPMgLN, the incident surface and output surface are disposed on the −X side and +X side, respectively, in the longitudinal direction. Because of this structure, even when a high-power laser fundamental wave is incident, the PPMgLN can avoid destruction and damage due to the electric field, thereby enabling the stable output of high-power harmonic.
摘要翻译：公开了能够稳定地输出大功率谐波光的波长转换装置。波长转换装置包括具有周期性极化反转结构的MgO：LiNbO 3（PPMgLN），并且用薄铬（Cr）膜覆盖PPMgLN的+ Z和-Z表面。在PPMgLN中，入射表面和输出表面分别沿纵向方向设置在-X侧和+ X侧。由于这种结构，即使在大功率激光基波入射的情况下，PPMgLN也能够避免由于电场而导致的破坏和损坏，从而能够稳定地输出大功率谐波。

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