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1. 发明专利

JPS61253424A VORTEX FLOWMETER 失效
公开(公告)号：JPS61253424A
公开(公告)日：1986-11-11
申请号：JP9432385
申请日：1985-05-01
申请人： ONODA HAJIME
发明人： ONODA HAJIME
IPC分类号： G01F1/32
摘要： PURPOSE:To enable highly accurate measurement of flow rate over a wide range, by arranging an obstacle placed at the center in a tube body in the shape with the width increasing continuously from upstream so that the passage may be choked gradually toward both sides thereof. CONSTITUTION:This vortex flowmeter comprises a square tube body 11, shape- converting sections 12 and 13, flanges 14 and 15, an obstacle 16 and a vortex train frequency detector 17. As a fluid 18 is chocked smoothly with the obstacle 16 toward both sides thereof, stable vortex trains are generated alternately behind it without causing any waste turbulence in the flow. Also, for example, with concave surfaces 20L and 20R on the back of the obstacle 16, the negative pressure will increases at these parts so much as to allow the generation of a large vortex. This enables the measurement of the frequency of vortex trains at a high accuracy leading to a highly accurate measurement of flow rate over a wide range.

2. 发明专利

JPH11326010A DIGIT WHEEL AND ITS MANUFACTURE 失效
公开(公告)号：JPH11326010A
公开(公告)日：1999-11-26
申请号：JP13854498
申请日：1998-05-20
申请人： ONODA HAJIME
发明人： ONODA HAJIME
IPC分类号： G01F15/07 , G01D7/00 , G01D13/02
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for a digit wheel, capable of easily obtaining a digit wheel which embosses figures having a color different from that of a digit wheel main body to clearly display the outlines of the figures. SOLUTION: This digit wheel is composed of a shaft hole 2 installed in the center of a disk-like digit wheel main body 1 integrally molded with a synthetic resin material and freely rotatably fitted to a main shaft, an outer periphery displaying figures of 0-9 at equal intervals, and teeth 4 installed in the side surface corresponding to the figures, wherein protruding parts 3 formed in the shapes of the figures of 0-9 are integrally molded on the outer periphery by injection molding, and on the surfaces of the protruding parts 3, thermal transfer foils 6 of which a colors is different from that of the digit wheel main body 1 are thermally transferred.

3. 发明专利

JPH05226755A METHOD AND APPARATUS FOR CONTROLLING SEMICONDUCTOR LASER 失效
公开(公告)号：JPH05226755A
公开(公告)日：1993-09-03
申请号：JP2401892
申请日：1992-02-10
申请人： NAKAI SADAO , IIDA KOZO , ONODA HAJIME , TANAKA YASUO
发明人： NAKAI SADAO , NAKATSUKA MASAHIRO , YAMANAKA MASANORI , NAITO KENTA , YAMANAKA CHIYOE , SATO TAKESHI , ONODA HAJIME , NAKAZATO HIROSHI
IPC分类号： H01S5/068
摘要： PURPOSE:To always keep the output wavelength of a semiconductor laser at an optimum value by deciding a driving parameter of the laser from a detection signal of a laser beam having passed through a medium for absorbing a specific wavelength. CONSTITUTION:A laser beam oscillated from a semiconductor laser 1 is spectrally separated into two beams by a beam splitter 7, one of which is condensed to a solid laser medium 10. The other of the two beams is made to pass through a filter 12 having an absorption band in a special wavelength, condensed to a photodetector 6 by a condenser lens 13, and measured. A detection signal to be continuously output from the photodetector 6 is detected at its minimum value by a minimum value detector 5, and this minimum value signal is supplied to an injection current controller 3 and a temperature controller 4. The minimum value of the laser passed through the filter 12 is detected and fed back thereby to automatically control the injection current and an operating temperature of the laser 1 to optimum values.

4. 发明专利

JPH0299260A CASTING METHOD 失效
公开(公告)号：JPH0299260A
公开(公告)日：1990-04-11
申请号：JP25272488
申请日：1988-10-06
申请人： ONODA HAJIME
发明人： ONODA HAJIME
IPC分类号： B22D23/06 , B22D23/00 , B22D27/08 , B22D27/15
摘要： PURPOSE:To eliminate the need for a melting furnace and to obtain a casting product which is free from pinholes and cavities and has stable quality by housing a metal ingot to be melted into the space part of a casting mold, heating the ingot to melt from the outside and applying ultrasonic oscillation thereto. CONSTITUTION:The metal ingot to be melted is housed into the space part 4 of the casting mold 1 and a high-frequency coil 11 is lowered and is set to the outer periphery of the casting mold 1. An ultrasonic oscillator and a high-frequency power source are then turned on. The metal itself is heated to melt and the fluidized Al is ultrasonically oscillated by an ultrasonic oscillator element 24 by which the molten Al is packed to all the corners of the space part 4. Further, the Al in a riser 5 is melted to flow to the space part 4. The generated gas is vented from a vent hole 6 by a vacuum pump 8. The molten metal solidifies and the casting product is obtd. when the ultrasonic oscillator and the high-frequency power source are turned off after the specified time. The equipment is simplified in this way and the casting product which is free from the pinholes and cavities and has the stable quality is obtd. in this way.

5. 发明专利

JP2788737B2 失效
公开(公告)号：JP2788737B2
公开(公告)日：1998-08-20
申请号：JP25272588
申请日：1988-10-06
申请人： ONODA HAJIME
发明人： ONODA HAJIME
IPC分类号： B22D23/06 , B22D23/00 , B22D27/08 , B22D27/15

6. 发明专利

JP2788736B2 失效
公开(公告)号：JP2788736B2
公开(公告)日：1998-08-20
申请号：JP25272488
申请日：1988-10-06
申请人： ONODA HAJIME
发明人： ONODA HAJIME
IPC分类号： B22D23/06 , B22D23/00 , B22D27/08 , B22D27/15

7. 发明专利

JPS62198716A VORTEX FLOW METER 失效
公开(公告)号：JPS62198716A
公开(公告)日：1987-09-02
申请号：JP4042686
申请日：1986-02-27
申请人： ONODA HAJIME
发明人： ONODA HAJIME
IPC分类号： G01F1/32
摘要： PURPOSE:To measure a flow rate with high accuracy over a wide range by sectioning rectangularly a tube body where fluid flows, providing an obstacle which has a rectangular surface in the tube body, and generating a stable vortex street. CONSTITUTION:The tube body 11 is sectioned rectangularly, the obstacle 16 which has the rectangular surface for reducing the fluid in area to both right and left sides is arranged in the tube body, and an exciter 19 is fitted through an arm 20. Area reduction parts 18L and 18R formed on both right and left sides of the obstacle 16 are made rectangular having constant width (d) without reference to their positions and the obstacle 16 is vibrated by the exciter 19 as shown by an arrow 10 to vary the width (d) of the area reduction part 18L and 18R finely. Consequently, the condition of vortex street generation is the same at the center part and upper and lower end parts of the obstacle 1 and the stable vortex street is generated at its downstream side. Further, the vibration of the obstacle 16 is controlled automatically by using the output of a vortex detector 17 to make the vibration frequency resonate with the generation frequency of the vortex street, thereby generating the large vortex street.

8. 发明专利

JPS61253422A VORTEX FLOWMETER 失效
公开(公告)号：JPS61253422A
公开(公告)日：1986-11-11
申请号：JP9432185
申请日：1985-05-01
申请人： ONODA HAJIME
发明人： ONODA HAJIME
IPC分类号： G01F1/32
摘要： PURPOSE:To enable highly accurate measurement of flow rate over a wide range, by arranging a fluid throttle section formed toward both sides of an obstacle having a tube body with a square section to be square in the shape with a fixed width regardless of position so as to generate a stable vortex flow. CONSTITUTION:Flanges 14 and 15 are provided at both ends of a tube body 11 with a rectangular, square section or the like through shape-converting sections 12 and 13 to be connected to a fluid piping with a circular section. Then, an obstacle 16 which has a rectangular surface to choke the fluid toward both sides thereof is arranged at the interval center of the tube body 11. A vortex train frequency detector 17 detects the frequency of a vortex train generated on the downstream of the obstacle 16. With such as arrangement, the conditions are the same in the generation of vortex trains at the center and at upper and lower ends of the obstacle 16 so that stable vortex trains will be formed on the downstream of the obstacle 16. Thus, highly accurate measurement of flow rate can be done over a wide range by detecting the frequency of the vortex trains the obtained.

9. 发明专利

JPH08243707A HALF-SOLIDIFIED CASTING APPARATUS 失效
公开(公告)号：JPH08243707A
公开(公告)日：1996-09-24
申请号：JP5116495
申请日：1995-03-10
申请人： ONODA HAJIME
发明人： ONODA HAJIME
IPC分类号： B22D1/00 , B22D17/00 , B22D17/28 , B22D17/30 , C22C1/02 , C22F3/02
摘要： PURPOSE: To provide a half-solidified casting apparatus, in which a half-solidified billet for exclusive use is not used but the castings, etc., as defective product are melted and the half-solidified billet is produced from this molten metal to enable the reuse of the waste stock. CONSTITUTION: The half-solidified billet B is pressed into the cavity in a die and a die casting machine 1 for casting the die cast product is provided. At near the die casting machine 1, a heat-melting furnace 2 for heating and melting the waste stock, a billet case 19 for incorporating the molten metal A melted with this heat-melting furnace 2 and a half solidified billet producing device 4 for cooling and half-solidifying while giving ultrasonic vibration to this molten metal A to produce the half-solidified billet B, are provided. Further, a billet carrying-in robot 5 carrying this half-solidified billet B into the die casting machine 1 is provided.

10. 发明专利

JPH05226756A OSCILLATION WAVELENGTH STABILIZER FOR SEMICONDUCTOR LASER 失效
公开(公告)号：JPH05226756A
公开(公告)日：1993-09-03
申请号：JP2393492
申请日：1992-02-10
申请人： NAKAI SADAO , ONODA HAJIME
发明人： NAKAI SADAO , NAKATSUKA MASAHIRO , YAMANAKA MASANORI , NAITO KENTA , NISHIDA YOSHIO , SATO TAKESHI , ONODA HAJIME
IPC分类号： H01S5/042 , H01S5/068
摘要： PURPOSE:To provide a wavelength stabilizer for a semiconductor device in which a limit by a wavelength is not provided, a cost is reduced by less number of components and influence of the ambient temperature is decreased. CONSTITUTION:A laser beam from a semiconductor laser 2 is collimated, introduced into a diffraction grating 8, and dispersed to wavelength components. The light beam of the dispersed wavelength components are detected by a wavelength detector 9, and its distribution is detected. This distribution is compared with a reference wavelength distribution by a wavelength sorter 10, and a control parameter of the laser is decided by a controller 12 based on its comparison result. The laser is controlled based on the parameter, and a wavelength of the oscillated laser beam is stabilized.

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