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1. 发明专利

JPH0213912A METHOD AND DEVICE FOR POSITIONING OPTICAL CIRCUIT PARTS 失效
公开(公告)号：JPH0213912A
公开(公告)日：1990-01-18
申请号：JP16252888
申请日：1988-07-01
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： KONO TSUTOMU , WATANABE TOSHIO , KATO KUNIHARU
IPC分类号： G02B6/42 , G02B6/36 , G02B7/00
摘要： PURPOSE:To manufacture an optical circuit module being free from optical misalignment and having high accuracy by bringing optical circuit parts which are positioned and placed on a positioning device to vacuum adsorption as they are to the positioning device. CONSTITUTION:First of all, a cylindrical optical element 1 being optical circuit parts and an optical fiber use sleeve 2 are positioned and placed along a semi- cylindrical groove 6 and a projection 9 of a positioning device 5 placed in a position corresponding to a prescribed position on a substrate 3, respectively, and in such a state, by bringing a vacuum adsorption use hole 7 to vacuum exhaust, separate parts 1, 2 are adsorbed and fixed onto the positioning device 5. Thereafter, the substrate 3 on which a sticking material 4 is applied to a parts loading position is positioned by utilizing a height setting block 10 of the positioning device 5 and a substrate stopper 11, a weight 12 is placed on the substrate 3, and in a state that the parts 1, 2 are adsorbed and fixed to the positioning device 5, its state is held until the sticking material 4 is solidified completely. In such a way, stable assembly accuracy being free from an optical misalignment is obtained as an optical circuit module.

2. 发明专利

JPS62154790A MANUFACTURE OF SEMICONDUCTOR DEVICE FOR OPTICAL COMMUNICATIONS 失效
公开(公告)号：JPS62154790A
公开(公告)日：1987-07-09
申请号：JP29268585
申请日：1985-12-27
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , NEC CORP , FUJITSU LTD
发明人： WATANABE TOSHIO , GOTOU MARUTOMO , YOSHIYA TSUTOMU , TACHIKAWA YOSHIAKI , ISHIKAWA SHIGETA , YUMOTO MITSURU
IPC分类号： H01L31/02 , G02B6/42 , H01L33/58
摘要： PURPOSE:To omit the adjustment of an optical axis when a substrate is mounted and to prevent fluctuation in optical output at the time of airtight sealing, by contacting the flange of a stem and the step part of the protruded part of a cap, with light being emitted from an optical element, projecting laser light on a contact part when the output of a light receiving monitor exceeds a specified value, and fixing the stem and the cap. CONSTITUTION:A chuck 6 of a cap is supported by X-Y-theta tables 10 and 9. A light receiving monitor assembly 8 is held in the hollow part of the chuck. A stem stuck 7 is arranged in a Z table 11. The cap 3 and the stem 2 are supported by the chucks 6 and 7. With light being emitted from an optical element 1, the flange of the stem 2 is contacted with a hollow protruded part 5 of the cap 3. The cap chuck 6 is moved by the X-Y table 10. When the light output, which is inputted in an optical power meter through the light receiving assembly 8, exceeds a specified value, laser light beams are simultaneously projected on two or more places of the contact part of the flange of the stem 2 and the cap 3. The stem 2 and the cap 3 are temporarily fixed. Thereafter, with the theta table 9 being rotated, the entire surface of the contact part is sealed with laser welding in an airtight manner.

3. 发明专利

JPS62139366A SEMICONDUCTOR DEVICE FOR OPTICAL COMMUNICATIONS 失效
公开(公告)号：JPS62139366A
公开(公告)日：1987-06-23
申请号：JP27900185
申请日：1985-12-13
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , NEC CORP , FUJITSU LTD
发明人： WATANABE TOSHIO , AOKI SATOSHI , GOTOU MARUTOMO , TACHIKAWA YOSHIAKI , ISHIKAWA SHIGETA , OKAMOTO AKIRA
IPC分类号： H01L31/0232 , G02B6/42 , H01L31/02 , H01L33/58
摘要： PURPOSE:To improve the assembling properties by providing a circular step portion of the same outer diameter as that of the stem flange portion in the neighborhood of the airtight seal fixing portion of the cap, thereby providing a construction to allow the beads to escape which are generated at the time of airtight seal fixing, eliminating the need for the optical axis adjustment between the respective devices. CONSTITUTION:A circular step portion 5 of the cap is processed to the same outer diameter as that of the circular flange of a stem 1, and supports the circular flange of the stem when performing the optical axis adjustment of the outgoing parallel lights with the axis center of the cap's outer periphery or when adjusting the light receiving surface position of a photo detector to the focal position of the entering parallel lights. And the step portion 5 is the portion to which a laser light is applied or the brazing portion when performing laser welding as the airtight seal for securing the reliability of an optical device, and it is to be in a size relationship that it does not become larger than the cap's outer size even in the occurrence of a gap between the cap step and the stem flange involved in the adjustment of the optical axis or focal point, or in the occurrence of raised deposit of the beads which are generated at the time of laser welding or brazing. With this, the need for the optical axis adjustment between the respective optical semiconductor devices is eliminated, enabling them to be mounted on the substrate without any adjustment.

4. 发明专利

JPH11352348A OPTICAL WAVEGUIDE TYPE POLARIZER 失效
公开(公告)号：JPH11352348A
公开(公告)日：1999-12-24
申请号：JP15822498
申请日：1998-06-05
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： USUI MITSUO , WATANABE TOSHIO , HIKITA MAKOTO
IPC分类号： G02B6/126 , C08G77/04 , G02B1/08 , G02B5/30 , G02B6/12
摘要： PROBLEM TO BE SOLVED: To inexpensively obtain an optical waveguide type polarizer which facilitates the integration of an optical waveguide circuit, etc., has a small insertion loss and exhibits a high polarization extinction ratio by forming a core or clad with a polysiloxane selected from the group consisting of respective specified polysiloxanes and their mixture. SOLUTION: A core or clad is formed of a polysiloxane selected from the group consisting of a polysiloxane having repeating units represented by formula I or II, the polysiloxane which is a copolymer having repeating units represented by the formulae I and II and a mixture of these polysiloxanes. In the formulae I and II, R1 and R2 are each an alkyl group represented by formula Cn Y2n+1 [where Y is hydrogen, deuterium or a halogen and (n) is a positive integer of

5. 发明专利

JPH09257143A SMALL-SIZED VALVE OF PIEZOELECTRICALLY DRIVING TYPE 失效
公开(公告)号：JPH09257143A
公开(公告)日：1997-09-30
申请号：JP9185796
申请日：1996-03-22
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： WATANABE TOSHIO , KUWANO HIROKI
IPC分类号： F16K1/00 , F16K31/02
摘要： PROBLEM TO BE SOLVED: To provide a small-sized valve capable of stably controlling an extremely low flow rate and controlling the flow rate over a wide range with high accuracy by applying voltage between electrodes to deform the passage hole of a piezoelectric membrane for varying the passage between a valve cover and the passage hole. SOLUTION: When voltage is applied between electrodes 3, 4, piezoelectric membrane 1 tends to extend in thickness direction, so that the other part contracts in proportion to the amount of extension, and a passage hole 2 expands in the direction of arrow 9 because the perimeter is fixed particularly in both directions. As a result, fluid can flow through the gap produced in the direction of arrow 10. When the size of the piezoelectric membrane 1 is 300μm×300μm, the radius of the passage hole 2 is 30μm, and the strength of the electric field applied to piezoelectric membrane 1 is 1V/μm, the amount of such a deformation is of order of 10nm. When the thickness of the piezoelectric membrane is 1∼5μm, applied voltage is 1∼5V, so that an adequate control is possible with a control circuit formed on the same silicon substrate.

6. 发明专利

JPH08314369A EXPRESSION METHOD FOR TACTILE SENSE STIMULATION 失效
公开(公告)号：JPH08314369A
公开(公告)日：1996-11-29
申请号：JP12196095
申请日：1995-05-19
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： WATANABE TOSHIO , FUKUI SHIGEHISA , MIZUKAMI MAKOTO
IPC分类号： G09B9/00 , A63B23/16 , G08B6/00 , G09B21/00
摘要： PURPOSE: To simulate a body feeling of a rough feeling or an equivalent feeling of resistance thereto by a tactile feeling without changing a surface form (roughness) of a touch surface by freely applying an ultrasonic vibration control to the tactile feeling to momentarily feel a rough feeling or an equivalent feeling of resistance thereto. CONSTITUTION: A Langevin type oscillator 2 is oscillated by a high frequency driving power source 3 in the vertical direction and the oscillation is amplified in the amplitude by an amplitude amplifier 4 as vertical oscillation and is propagated to a touch plate 1, which vibrates in the direction normal, vertical, to the touch surface 1a. When this high frequency driving power source 3 is AM- modulated, the vibration of the touch plate 1 follows to be modulated and can momentarily be vibrated with ultrasonic waves. Thus, a feeling of resistance is generated as if a place of momentary touch has become rough or a protrusion is formed, by providing the touch plate 1 with ultrasonic vibrations for an extremely short time.

7. 发明专利

JPH06258676A QUADRATIC NONLINEAR OPTICAL MATERIAL 失效
公开(公告)号：JPH06258676A
公开(公告)日：1994-09-16
申请号：JP6596193
申请日：1993-03-03
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： AMANO MICHIYUKI , HAYASHIDA SHOICHI , WATANABE TOSHIO , TOMARU AKIRA
IPC分类号： C08G77/26 , C08G77/28 , C09K9/02 , G02F1/35 , G02F1/355 , G02F1/361
摘要： PURPOSE:To provide the nonlinear optical material which is low in propagation loss at wavelength of a near IR region and has excellent heat resistance by copolymerizing a monomer, of which basic structure in phenyl silicone, with a component exhibiting a quadratic nonlinear molecular polarization rate. CONSTITUTION:This nonlinear optical material consists of the copolymer contg. the repeating units of two components or three components including the repeating unit expressed by formula I and/or the repeating unit expressed by formula II and the repeating unit expressed by formula III (where R is a group exhibiting the quadratic nonlinear molecular polarization ratio). This material is subjected to a polarization treatment by impressing a DC electric field thereto at a temp. about its glass transition temp., thereby, the arrangement of the nonlinear optical components is made non center-symetrical and the quadratic nonlinear optical effect is exhibited. The material is preferably cooled from about the glass transition temp. down to ordinary temp. in the state of impressing the DC electric field thereto for the effective polarization treatment. The optical material is used for the optical modulators, optical switches, etc., to be used in optical communication systems.

8. 发明专利

JPH0695187A OPTICAL NONLINEAR MATERIAL 失效
公开(公告)号：JPH0695187A
公开(公告)日：1994-04-08
申请号：JP26561092
申请日：1992-09-09
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： WATANABE TOSHIO , AMANO MICHIYUKI
IPC分类号： G02F1/35 , G02F1/355 , G02F1/361
摘要： PURPOSE:To obtain a polymer material having large second-order nonlinear property in 1.3-1.5mum wavelength region and suitable to be formed in an element. CONSTITUTION:The nonlinear optical material consists of a polymer material to which at least one kind of pigment component expressed by formula (15)-(18) is bonded. (15): -(CH2CH2)-N-(CH2CH3)-p-C6H4-N=N-(5-nitrothiazole-2-yl) (16): =[(CH2CH2)]2N-p-C6H4-N=N-(5-nitrothiazol-2-yl) (17): -(CH2CH2)-N(CH2CH3)-p-C6 H4--N=N-[5-(2,2-dicyano)vinyl-4-chloro-thiazol-2-yl] (18): =[(CH2CH2]2N-p-C6H4-N =N-[5-(2,2-dicyano)vinyl-4-chloro-thiazol-2-yl].

9. 发明专利

JP2001264562A POLYMER OPTICAL WAVEGUIDE 失效
公开(公告)号：JP2001264562A
公开(公告)日：2001-09-26
申请号：JP2000078777
申请日：2000-03-21
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： HAYASHIDA SHOICHI , KURIHARA TAKASHI , TOYODA SEIJI , WATANABE TOSHIO , TOMARU AKIRA , KATO YUJIRO , MARUNO TORU
IPC分类号： G02B6/122 , G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide a polymer optical waveguide having high reliability without generating cracks even when it is used for a long time in a general environment accompanied with changes in temperature or changes in humidity. SOLUTION: The optical waveguide has a stress relief layer 12 consisting of a polymer material and a lower clad layer 13 formed on a substrate 11 and has an upper clad layer 15 which covers a core part 14 formed on the lower clad layer 13.

10. 发明专利

JP2001222033A OPTICAL WAVEGUIDE TYPE OPTICAL SWITCH 失效
公开(公告)号：JP2001222033A
公开(公告)日：2001-08-17
申请号：JP2000033859
申请日：2000-02-10
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA NAOKI , GO TAKASHI , WATANABE TOSHIO , KURIHARA TAKASHI
IPC分类号： G02F1/313
摘要： PROBLEM TO BE SOLVED: To provide an optical waveguide type optical switch in which the allowance of a coupling length error and a phase-shift amount error is large and which is capable of maintaining a high extinction ratio. SOLUTION: Two line of optical waveguides 11 successively form a first directional coupler 12, a first phase shifter 17, a second directional coupler 13, a second phase shifter 18, a third directional coupler 14 and the first phase shifter 17 and the second phase shifter 18 are constituted so as to simultaneously act respectively on the core of the optical waveguide of the side and the core of the other optical waveguide.

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