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1. 发明专利

JPH09198701A OPTICAL PICKUP AND OPTICAL PICKUP FOR PHASE CHANGE TYPE OPTICAL DISK 失效
公开(公告)号：JPH09198701A
公开(公告)日：1997-07-31
申请号：JP634196
申请日：1996-01-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ERA MASANORI
IPC分类号： G11B7/135
摘要： PROBLEM TO BE SOLVED: To obtain a satisfactory signal characteristic by forming dielectric reflection films on presribed positions of substrates constituting an optical guide member to make the absorption loss of light small and to make the resistance to an organic solvent, etc., large. SOLUTION: This pickup has plural substrates inclined with respect to the incident light irradated from a light source 1 and also has reflection films formed in the optical path of the substrates by being laminated with plural dielectric layers. Then, the light returned by being reflected form an optical medium is guided to prescribed positions by an optical guide member and the lights are received by light receiving means 13 and also light signals are transducer into electric signals. The reflection films are formed on the prescribed positions of the surfaces of the substrates constituting the optical guide member and reflect the incident light to guide it to prescribed positions. Then the reflection film is formed by alternately laminating the dielectric film having a high refractive index and the dielectric film having a low refractive index.

2. 发明专利

JPH0997442A OPTICAL PICKUP AND OPTICAL PICKUP FOR PHASE TRANSITION TYPE OPTICAL DISK 失效
公开(公告)号：JPH0997442A
公开(公告)日：1997-04-08
申请号：JP25315995
申请日：1995-09-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ERA MASANORI
IPC分类号： G11B7/135
摘要： PROBLEM TO BE SOLVED: To obtain an optical pickup which is high in utilization efficiency of light by lowering the dependency of the reflectivity of a reflection type hologram on the incident angle of light and, further, extremely lowering the dependency on film thicknesses as well, and an optical pickup for a phase transition type optical disk. SOLUTION: This optical pickup has a constitution obtd. by using a metallic film for a reflection film 52 formed on the rear surface of the hologram 50 of a reflection type. Further, a protective film 53, such as dielectric film, is further formed on the rear side of the metallic film in order to protect the reflection film 52 having a relatively easy tendency of peeling in order to prevent the peeling of the metallic film. Further, the optical pickup has the constitution to form the reflection type hologram 50 as a composite optical element by utilizing these films as the reflection films.

3. 发明专利

JP2004039163A Optical pickup device and optical disk device 审中-公开
公开(公告)号：JP2004039163A
公开(公告)日：2004-02-05
申请号：JP2002197030
申请日：2002-07-05
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： ERA MASANORI , TAKEUCHI SHIGEKI , MATSUMOTO MITSUHIRO
IPC分类号： G11B7/135 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To provide small and inexpensive optical pickup device and optical disk drive, which is superior in focusing and which realize precise and efficient detection. SOLUTION: The device is provided with an integrated optical member 20 where a polarized light separating film with intensity correction function 28, which selectively guides the outgoing light 102 to an optical disk and separates the return light 104 from the optical disk is disposed and a part of outgoing light 102 is extracted for an optical power monitor and with an OE element 63 receiving the return reflected diffraction light 105 and optical monitor reflected diffraction light 103. The polarized light separation film with intensity correction function 28 is composed of a dielectric multilayer film. When direction dependency exists in an intensity distribution of incident light , the direction dependency can be reduced in a region near an incident angle. COPYRIGHT: (C)2004,JPO

4. 发明专利

JPH08169119A HEAD FOR INK JET PRINTER AND PRODUCTION THEREOF 失效
公开(公告)号：JPH08169119A
公开(公告)日：1996-07-02
申请号：JP31447994
申请日：1994-12-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ERA MASANORI
IPC分类号： B41J2/05 , B41J2/16
摘要： PURPOSE: To perform stable printing generating no impedance change without requiring an ageing process by forming an oxide film at least on the surface of the exposed part of an electrode. CONSTITUTION: Predetermined DC voltage is applied to the respective electrodes 3a, 3b exposed to the interior of an ink chamber 6 to form oxide films 17a, 17b at least on the surfaces of the exposed parts of the electrodes 3a, 3b. In this case, since an ageing process is not required, the thickness of the oxide films can be arbitrarily controlled according to the level of DC voltage without being accompanied by the emission of ink and the oxide films having uniform thickness can be formed. As a result, since the change due to the emission of ink such as oxidation reaction or melting reaction due to the electrochemical reaction of the electrodes and conductive ink can be suppressed, stable printing generating no impedance change can be performed and a head of high image quality for an ink jet printer can be produced in low cost.

5. 发明专利

JPH0872243A INK JET PRINTER HEAD 失效
公开(公告)号：JPH0872243A
公开(公告)日：1996-03-19
申请号：JP21469594
申请日：1994-09-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ERA MASANORI
IPC分类号： B41J2/05
摘要： PURPOSE: To provide an ink-jet printer head of electroheating system capable of conducting a stabilized current to ink. CONSTITUTION: A bulb metal is used as an electrode material of an anode 5 of an electroheating system ink-jet printer head, and a cathode 4 is driven by earth voltage. Though a thickness of an oxide film owing to anodic oxidation on the bulb metal is proportional to time integration of a flowing current thereby, dissolution of the anode is suppressed by generation of the oxide film. Since oxygen is consumed by oxidation, generation of oxygen gas which may cause a trouble as an electrolytic bubble can be suppressed even at a voltage higher than an excess oxygen voltage.

6. 发明专利

JPH07147016A IN-LINE SPUTTERING DEVICE 失效
公开(公告)号：JPH07147016A
公开(公告)日：1995-06-06
申请号：JP29286193
申请日：1993-11-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ERA MASANORI
IPC分类号： C23C14/34 , C23C14/56 , G11B5/85 , G11B5/851
摘要： PURPOSE:To produce a magnetic disk having high holding force and low in intrasuface distribution of a magnetic characteristic. CONSTITUTION:The plate thickness of a carrier 1 of a in-line type sputtering device is made almost the same with that of a magnetic disk substrate 2, moreover, the carrier 1 is composed of a material having almost the same specific heat and heat conductivity as that of the substrate 2. Therefore, when film is formed by sputtering on magnetic disk substrate side by impressing a negative voltage, a magnetic field distribution in the magnetic disk substrate 2 and in the vicinity of the carrier 1 becomes uniform and both heat distributions become uniform, so a sputtering film having uniform property is formed.

7. 发明专利

JP2007265559A Optical pickup device and optical disk device 审中-公开
标题翻译：光学拾取器件和光盘设备
公开(公告)号：JP2007265559A
公开(公告)日：2007-10-11
申请号：JP2006091198
申请日：2006-03-29
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： YAMAGUCHI HIDEO , ERA MASANORI , URAGAMI SUSUMU , GOTO HIROSHI , MARUYAMA HIDEKI , OMORI TAKAHIRO , SATO HIROSHI , MITSUMASA JIROU , SEKI NORIAKI , MINODA TAKATOSHI , ONO EIZO
IPC分类号： G11B7/135
摘要： PROBLEM TO BE SOLVED: To provide a thin type optical pickup device and an optical disk device in which the distance between a rise prism and an objective lens is minimized while sufficient recording and reproducing performance is secured. SOLUTION: The optical pickup device 20 is provided with a laser light source 1 emitting light of two kind of waveforms, a diffraction element 2 provided with a first diffraction grating 2a generating light used for tracking control by transmitting light of one side emitted from the laser light source 1 and diffracting light of the other side and a second diffraction grating 2b generating light used for tracking control by transmitting light of the other side and diffracting light of one side, a light receiver 11 receiving light reflected by the optical disk, a beam splitter 3 forwarding the light reflected by the optical disk to the light receiver 11, and a detecting lens 10 provided between the beam splitter 3 and the light receiver 11 and generating light used for focus tracking by making focal distances different in two orthogonal cross sections including an optical axis. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种薄型光学拾取装置和光盘装置，其中确保了上升棱镜和物镜之间的距离，同时确保了足够的记录和再现性能。光拾取装置20设置有发出两种波形的光的激光光源1，设置有第一衍射光栅2a的衍射元件2，该第一衍射光栅2a产生用于通过发射一侧发射的光来跟踪控制的光从激光光源1和衍射光的另一侧衍射光和第二衍射光栅2b产生用于跟踪控制的光，通过透射另一侧的光并衍射一侧的光;受光器11接收由光盘反射的光将由光盘反射的光转发到光接收器11的分束器3和设置在分束器3和光接收器11之间的检测透镜10，并且通过使焦距在两个正交中不同而产生用于聚焦跟踪的光横截面包括光轴。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2001312835A OPTICAL PICKUP DEVICE 失效
公开(公告)号：JP2001312835A
公开(公告)日：2001-11-09
申请号：JP2001016670
申请日：2001-01-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUKAKUSA MASAHARU , HORINOUCHI SHOGO , TAKEUCHI SHIGEKI , KOGA TOSHIHIRO , FURUKAWA FUMINOBU , KAI TOSHINORI , ERA MASANORI , MITSUMASA JIROU , MAEDA SHIGEO , SAKAMOTO YOSHITAKA , MATSUMOTO MITSUHIRO , ONO EIZO , IRIE YOSHIYA
IPC分类号： G11B7/135 , G11B7/22
摘要： PROBLEM TO BE SOLVED: To provide an optical pickup device small-sized, inexpensively structured, and capable of being precisely assembled. SOLUTION: The optical pickup device is characterized by the structure consisting of a general-purpose semiconductor laser 11, an integrated optical member 20 that guides going light to an optical disk and that separates returning light, a light receiver 60 for receiving light to convert it to an electric signal, and a combining member 80 that holds mutual positions of the general- purpose semiconductor laser 11, the integrated optical member 20 and the light receiver 60. The device is small-sized using the general-purpose semiconductor laser 11, structured at low cost, and designed to be assembled precisely, so that it can accurately and efficiently detect the optical power of the general-purpose semiconductor laser 11.

9. 发明专利

JPH11283271A OPTICAL PICKUP DEVICE 失效
公开(公告)号：JPH11283271A
公开(公告)日：1999-10-15
申请号：JP8572198
申请日：1998-03-31
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKEUCHI SHIGEKI , IDE KAZUHISA , ERA MASANORI
IPC分类号： G11B7/135
摘要： PROBLEM TO BE SOLVED: To provide an optical pickup device with which processing is enabled with higher accuracy and the integration into one layer can be more dealt with by suppressing the unwanted diffusion of light or stray light in an integrated head. SOLUTION: Concerning the optical pickup device provided with a prism element 1 for reading information from an optical information medium and forming an optical path to a light receiving element by retracting and reflecting light made incident from an external light emitting element while having the laminate structure of integrating plural light transmissible substrates 3, 4, 5 and 6, a light absorbing means is provided for suppressing the return or interference to the optical path by absorbing light overflowing from the optical path of incident light from an incident section to the light receiving element, and the interference to the optical path for optical information is blocked by absorbing the required light through this light absorbing means.

10. 发明专利

JPH08332728A INK JET PRINTING HEAD 失效
公开(公告)号：JPH08332728A
公开(公告)日：1996-12-17
申请号：JP14222795
申请日：1995-06-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ERA MASANORI
IPC分类号： B41J2/05
摘要： PURPOSE: To realize an electrothermal ink jet printing head not generating the deterioration of printing quality and enabling high speed printing. CONSTITUTION: In an electrothermal ink jet printing head wherein a pair of opposed electrodes 3 are provided on the insulating substrate 7 in an ink chamber 1 and voltage is applied across the electrodes to generate boiling air bubbles to inject ink droplets from the nozzle orifices communicating with the ink chamber, an insulating film 4a of which the contact angle to ink is larger than that of the insulating substrate 7 is laminated to the surface of the insulating substrate 7 in the vicinity of the electrodes 3. When the contact angle is increased, the bonding work of the insulating film 4a and ink is reduced and the movement of the ink becomes easy and high speed printing becomes possible.

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