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1. 发明专利

JPH07275681A STIRRING BLADE 失效
公开(公告)号：JPH07275681A
公开(公告)日：1995-10-24
申请号：JP5853195
申请日：1995-03-17
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： KAWAMURA SUNAO , HARADA KAZUNORI , MARUYAMA EIJI , MIZUSEKI YASUHIKO , SEKIDA KEISUKE
IPC分类号： B01F3/04 , B01F7/16 , B01F7/22
摘要： PURPOSE:To enhance stirring effect especially in a gas-liquid mixing stirrer by performing stirring with a stirring blade consisting of blades each having a recessed cross section toward a rotary direction and assymmetric in its cross section with respects to a horizontal axis so that the upper part of the cross section protrudes in the rotary direction as compared with the lower part thereof. CONSTITUTION:Stirring is performed with a stirring blade consisting of blades 8 each having a recessed cross section toward a rotary direction 7 and assymmetric in its cross section with respect to a horizontal axis to that the upper part of the cross section protrudes in the rotary direction as compared with the lower part thereof. That is, the air 12 blown in a stirring tank 1 from an air blowing-in port 3 raises through a liquid 13 and almost all of the air 12 impinges against the blades 8 to be sucked to the insides 11 of the recessed cross sections thereof to be strongly emitted into the liquid 13 resent in the outer peripheral parts 15 of the blades 8 by the centrifugal force generated by the rotation of the blades 8. As a result, the air 12 is uniformly dispersed into the liquid 13 and stirring effect is enhanced to a large extent as compared with a conventional stirring blade.

2. 发明专利

JPH02134470A METHOD AND DEVICE FOR FASTENING OF LARGE BORE FLANGE 失效
公开(公告)号：JPH02134470A
公开(公告)日：1990-05-23
申请号：JP28566688
申请日：1988-11-14
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： SUEHIRO MITSURU , MARUYAMA EIJI , KANEKIYO HIROSHI , KAWAMURA TAKAYASU
IPC分类号： F16J13/06 , F16J13/20
摘要： PURPOSE:To make opening and shutting of a lid and fastening thereof by supporting an actuator by a pin rotatably on the body of a vacuum vessel, and moving a fastening arm with expansion/contraction of this actuator following a specified locus of a guide provided at a supporting member on the vacuum vessel side. CONSTITUTION:When an actuator 6 advance (elongates), a stationary pin 8 slides a guide 9, and one-turn motion in sliding is given by a pin 10 and a guide 11. If these guides 9, 11 to guide the stationary pin 8 following a certain locus are determined upon assumption of the moving position of a fastening arm previously, opening and shutting of a lid flange 4 and its fastening can be made automatically by repeating fore-and-aft motions of the actuator 6 (expansion and contraction) under remote control.

3. 发明专利

JPH02155901A APPARATUS FOR POLYMERIZATION OF HIGHLY VISCOUS MATERIAL 失效
公开(公告)号：JPH02155901A
公开(公告)日：1990-06-15
申请号：JP30998388
申请日：1988-12-09
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： KANZAKI ATSUMITSU , KINOSHITA TAKATOSHI , FURUKAWA KEISHIN , MARUYAMA EIJI , ODA CHIKAO
IPC分类号： B01F7/16 , B01F7/00 , B01F7/24 , B01J19/18 , C08F2/00 , C08G85/00
摘要： PURPOSE:To permit even a highly viscous material to be stirred uniformly without adhering to the wall of a tank, thereby reducing the polymerization time, by attaching agitating blades to the vertical parts of a zigzag agitating shaft connected to a driving shaft. CONSTITUTION:An agitating shaft 2 of a vertical agitating tank 1 is formed into a zigzag and is connected to a driving shaft. Agitating blades 3 are attached to the vertical parts of the shaft 2. As the agitating blade, one of a screw blade, a turbine blade, a paddle blade, a helical blade, etc., or a combination thereof is preferably used. Also, it is preferred that the gap between the tip of the blade 3 and the inner wall of the tank 1 is minimized. According to the above, since a polymeric liquid can get the shearing force even near the inner wall of the tank 1 and also near the center of the tank to be agitated uniformly and the liquid near the wall of the tank can be scraped by the blades 3, even a highly viscous material can be polymerized without adhering.

4. 发明专利

JPH0295426A VERTICAL AGITATOR AND ITS OPERATION 失效
公开(公告)号：JPH0295426A
公开(公告)日：1990-04-06
申请号：JP24414988
申请日：1988-09-30
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： KINOSHITA TAKATOSHI , MARUYAMA EIJI , FURUKAWA KEISHIN , KANZAKI ATSUMITSU , ODA CHIKAO
IPC分类号： B01F7/00 , B01F7/16 , C08G85/00
摘要： PURPOSE:To increase the mixing and agitating efficiency and to improve productivity by providing a low-viscosity impeller and a high-viscosity impeller in one agitated vessel, and adjusting the rotating speed of each impeller in conformity to the liq. viscosity. CONSTITUTION:The concentric two-shaft impeller having an inner shaft and an outer shaft surrounding the concentric inner shaft is provided. Namely, the inner shaft having a low-viscosity impeller 2 and the outer shaft having a high-viscosity impeller 3 on the periphery of the impeller 2 are furnished to form the concentric two shaft impeller. The devices 5 and 4 for respectively driving the inner and outer shafts are provided, the agitating powers of the driving devices 5 and 4 are detected, and the rotating speeds of the driving devices 5 and 4 are controlled by a power indicating controller 6 through speed controllers 7 and 8. Consequently, only one kettle is used in this process instead of the two kettles in the conventional process, and the equipment cost can be reduced. In addition, since two kinds of impellers are provided, the agitating efficiency can be increased, and the productivity can also be improved.

5. 发明专利

JPH01274837A JACKETED REACTOR 失效
公开(公告)号：JPH01274837A
公开(公告)日：1989-11-02
申请号：JP10257888
申请日：1988-04-27
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： WATABE KENICHI , KAWAMURA SUNAO , KINOSHITA TAKATOSHI , MARUYAMA EIJI , KANEYUKI YUKIO
IPC分类号： B01J19/00
摘要： PURPOSE:To control the variance in the temp. of a soln. in the main reactor body by progressively decreasing the cross-sectional area of the passage for the soln. in the jacket from the inlet part of the soln. toward the outlet part. CONSTITUTION:The interval between partition plates 3 is progressively decreased from the inlet part of the soln. in the jacket toward the outlet part to reduce the cross-sectional area of the passage for the soln. in the jacket. Accordingly, the flow velocity of the soln. is increased, the heat-transfer coefficient is also increased, and a decrease in the temp. difference between the soln. in the jacket 2 and the soln. in the main shell 1 can be controlled. Accordingly, the variance in the heat transmission between both solns. can be controlled, the variance of the soln. in the main shell 1 is controlled, and a reaction can be efficiently carried out under temp.-controlled conditions.

6. 发明专利

JPH02169020A HOLLOW SHAFT FINAL REDUCTION GEAR HAVING SELF-ASCENDING/ DESCENDING FUNCTION OF OUTPUT SHAFT 失效
公开(公告)号：JPH02169020A
公开(公告)日：1990-06-29
申请号：JP32332988
申请日：1988-12-23
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： MIZUSEKI YASUHIKO , KANZAKI ATSUMITSU , KAWAMURA SUNAO , MARUYAMA EIJI
IPC分类号： F16H25/20 , B01F7/00
摘要： PURPOSE:To faciliate detachment and assemblage of a sealing device of a hollow shaft final reduction gear without restricting an installing site of a stirring tank for a large sized stirring tank installed with a hollow shaft final reduction gear by providing a feed screw mechanism for ascending or descending an output shaft. CONSTITUTION:In a hollow shaft final reduction gear 11 to be used in a driving device of a stirring tank, a feed screw mechanism 15 provided with a screw member 1, strut 2, and a gear 3, is disposed rotatably to a main body of the final reduction gear 11 interposing a bearing 17. Further, a screw 16 is provided to an output shaft 8 of the final reduction gear 11 to connect thus the screw 16 to a screw member 1 of the feed screw mechanism 15. As the result, detachment and assemblage of a sealing device is facilitated without requiring to restrict a site for installing the stirring tank.

7. 发明专利

JPH01231930A HOMOGENIZER FOR FLUID 失效
公开(公告)号：JPH01231930A
公开(公告)日：1989-09-18
申请号：JP5830488
申请日：1988-03-14
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： ISHIBE MASAHIKO , KINOSHITA TAKATOSHI , MARUYAMA EIJI , KANEYUKI YUKIO
IPC分类号： B01F5/00 , B01F7/00 , B01F7/16 , B01F13/08 , C08G63/78
摘要： PURPOSE:To efficiently homogenize by forming a revolutional driving part around the upper part of an agitation shaft, installing the cylindrical agitation blade having fin type projections to the outside of agitation blades fixed to the lower part of the agitation shaft, and providing fin type projections on the inner wall of main body so that each fin forms each other the space of fluid flow passage. CONSTITUTION:In the homogenizer which homogeneously mixes one or several additives of different kind with one liquid, the revolutional driving part consists of the rotor coils 15 provided around the upper part of the agitation shaft 3 and the stator coils 16 provided around the periphery of the rotor coils 15. And, the agitation blades 10 and the cylindrical agitation blade 11 having fin type projections 12, on its outside are provided on the lower part of the agitation shaft 3, and a liquid flow space is formed by locating the fin of the cylindrical agitation blade 11 between the fin type projections 12 provided on the inner trunk wall of the main body 1. By this construction free from leakage of process liquid to the outside, the efficient homogenization is continuously carried out by giving strong shearing actions to the process liquid.

8. 发明专利

JP2001085400A EQUIPMENT AND METHOD FOR PLASMA TREATMENT 失效
公开(公告)号：JP2001085400A
公开(公告)日：2001-03-30
申请号：JP25823499
申请日：1999-09-13
申请人： HITACHI LTD
发明人： AIMOTO AKIHIKO , TAMURA NAOYUKI , MARUYAMA EIJI
IPC分类号： H01L21/302 , C23F4/00 , H01L21/3065 , H05H1/46
摘要： PROBLEM TO BE SOLVED: To prevent the deposition of a reactive product which can adversely affect wafer treatment conditions. SOLUTION: Deposition of a reactive product is related to a temperature of a part to be deposited with the reactive product. It is known that it is hard to have a reactive deposited on a high temperature part. In order to raise the temperature of a part which is expected to be deposited with a reactive product to prevent the deposition of the reactive product, a gas supply plate 1 and an inner tube 3 are integrated into a single unit, and the deposition of the reactive product is prevented using heat transfer from the inner tube.

9. 发明专利

JPH03239803A FIXING METHOD OF CIRCULAR TUBE AND COLUMN 失效
公开(公告)号：JPH03239803A
公开(公告)日：1991-10-25
申请号：JP29233689
申请日：1989-11-13
申请人： HITACHI LTD
发明人： HARADA KAZUNORI , TAKADA TADASHI , KAWAMURA SUNAO , MARUYAMA EIJI , WATABE KENICHI
IPC分类号： F16B2/08
摘要： PURPOSE:To improve rigidity and fixation without deforming a tube pipe, etc. by abutting an object to be fixed against a support body at one point, and against the other fixation means at two points. CONSTITUTION:A column 4 is fixed to a support body 3 by means of a trapezoidally processed U bolt 1. Then the column 4 is brought into contact with the support body 3 at one point, and with the U bolt 1 at two oblique lines. The deformation of the tube pipe 4 is suppressed by dispersion of supporting force, and rigid fixation is enabled.

10. 发明专利

JPS6320516B2 失效
公开(公告)号：JPS6320516B2
公开(公告)日：1988-04-27
申请号：JP19462884
申请日：1984-09-19
申请人： HITACHI LTD
发明人： TOO KUNIHIKO , NOMURA SEIJI , FUJIMOTO MASAKATSU , KATO KENJI , MARUYAMA EIJI
IPC分类号： C12M3/02 , C12M3/00 , C12N5/00 , C12N5/02

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