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1. 发明授权

US6273693B2 Screw compressor 有权
公开(公告)号：US6273693B2
公开(公告)日：2001-08-14
申请号：US73057600
申请日：2000-12-07
申请人： HITACHI LTD
发明人： HIDA TAKESHI , NOZAWA SHIGEKAZU , URASHIN MASAYUKI , YAMAZAKI NORIYUKI
IPC分类号： F04B39/04 , F04C29/00 , F04C29/02 , F04C29/12 , F01C1/02
CPC分类号： F04C29/026 , Y10S418/01
摘要： Oil separation from discharge gas of a screw compressor is performed with a demister provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage in a discharge casing so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate is disposed on the downstream side of the auxiliary demister.

2. 发明专利

DE69914122T2 未知
公开(公告)号：DE69914122T2
公开(公告)日：2004-11-11
申请号：DE69914122
申请日：1999-04-08
申请人： HITACHI LTD
发明人： HIDA TAKESHI , NOZAWA SHIGEKAZU , URASHIN MASAYUKI , YAMAZAKI NORIYUKI
IPC分类号： F04B39/04 , F04C29/00 , F04C29/02 , F04C29/12
摘要： Oil separation from discharge gas of a screw compressor (6) is performed with a demister (5) provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister (21) for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage (15) in a discharge casing (3) so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate (22) is disposed on the downstream side of the auxiliary demister.

3. 发明专利

DE69914122D1 未知
公开(公告)号：DE69914122D1
公开(公告)日：2004-02-19
申请号：DE69914122
申请日：1999-04-08
申请人： HITACHI LTD
发明人： HIDA TAKESHI , NOZAWA SHIGEKAZU , URASHIN MASAYUKI , YAMAZAKI NORIYUKI
IPC分类号： F04B39/04 , F04C29/00 , F04C29/02 , F04C29/12
摘要： Oil separation from discharge gas of a screw compressor (6) is performed with a demister (5) provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister (21) for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage (15) in a discharge casing (3) so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate (22) is disposed on the downstream side of the auxiliary demister.

4. 发明专利

ES2210884T3 未知
公开(公告)号：ES2210884T3
公开(公告)日：2004-07-01
申请号：ES99106939
申请日：1999-04-08
申请人： HITACHI LTD
发明人： HIDA TAKESHI , NOZAWA SHIGEKAZU , URASHIN MASAYUKI , YAMAZAKI NORIYUKI
IPC分类号： F04B39/04 , F04C29/00 , F04C29/02 , F04C29/12
摘要： Oil separation from discharge gas of a screw compressor (6) is performed with a demister (5) provided in a discharge chamber. For solving unevenness in the speed distribution of the gas in the chamber, at least one auxiliary demister (21) for oil separation is disposed at a local position immediately behind or near the downstream side of an outlet of a discharge passage (15) in a discharge casing (3) so as to be perpendicular to the flow direction of the gas at the outlet. In addition, at least one obstacle plate (22) is disposed on the downstream side of the auxiliary demister.

5. 发明专利

JP2004030682A Method and device for retrieving and delivering document 有权
公开(公告)号：JP2004030682A
公开(公告)日：2004-01-29
申请号：JP2003208580
申请日：2003-08-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUGAYA NATSUKO , KAWAGUCHI HISAMITSU , YAMAZAKI NORIYUKI
IPC分类号： G06F17/30
摘要： PROBLEM TO BE SOLVED: To provide a document retrieval and delivery system for realizing a high speed text retrieval and distribution function without depending on the number of users even when the number of users increases. SOLUTION: A retrieval conditional expression is analyzed, the number of retrieval terms (term hereafter) included in the retrieval conditional expression is stored in a number of term count table (table A hereafter), a finite automaton for collating all the terms included in the retrieval conditional expression is created, a user identifier table storing which user has the terms included in the retrieval conditional expression is created, terms are collated by scanning a subject text by the automaton, the number of terms in which partial character strings matches with the terms appears in the text is calculated by every user by referring to the user identifier table, stored in a storage area for the calculated number of terms in the table A, the calculated number of terms in the table A is compared with the number of terms in the retrieval conditional expression and when a comparison result matches, the text is distributed to the user. COPYRIGHT: (C)2004,JPO

6. 发明专利

JPH11242676A METHOD FOR REGISTERING STRUCTURED DOCUMENT, METHOD FOR RETRIEVING STRUCTURED DOCUMENT, AND PORTABLE MEDIUM USED IN THESE METHODS 失效
公开(公告)号：JPH11242676A
公开(公告)日：1999-09-07
申请号：JP4318798
申请日：1998-02-25
申请人： HITACHI LTD
发明人： OKAMOTO TAKUYA , TAKAHASHI TORU , KAWAGUCHI HISAMITSU , TADA KATSUMI , YAMAZAKI NORIYUKI
IPC分类号： G06F17/30
摘要： PROBLEM TO BE SOLVED: To realize high-precision and efficient structure designation retrieval by providing an analyzed document data generation and registration step for analysis of the logical structure which a document has and a structure index generation step which gives a context identifier as the identifier for unequivocal identification in a structure index. SOLUTION: A document structure analysis program 210 reads out a registration object document stored in a floppy disk 205 and analyzes its logical structure to generate analyzed document data and stores this data in an analyzed document storage area 217. Meanwhile, a structure index preparing program 211 registers information related to the logical structure, which analyzed document data has, in the structure index stored in a structure index storage area 218 to update the structure index. A structured entire text data preparing program 212 generates structured entire text data related to the registration object document from analyzed document data and stores the prepared data in a structured entire text data storage area 219.

7. 发明专利

JPH11136281A ELECTRONIC MAIL SYSTEM, ELECTRONIC MAIL PROCESSING METHOD, AND MAIL SERVER SYSTEM 失效
公开(公告)号：JPH11136281A
公开(公告)日：1999-05-21
申请号：JP31658697
申请日：1997-10-31
申请人： HITACHI LTD , HITACHI CHUBU SOFTWARE KK
发明人： KAWADA KOICHI , YAMAZAKI NORIYUKI , MARUYAMA TAKEO , KAMIYOSHI TAKUMA , USHIDA MEGUMI , SEKIYA SHIGEO
IPC分类号： G06F13/00 , H04L12/54 , H04L12/58
摘要： PROBLEM TO BE SOLVED: To allow a receiver side to use an alias file and to easily access a real file by sending a mail added with the alias file from a transmitter side to a receiver side even when the environment of the same integrated client is not provided to the transmitter side client and the receiver side client in the electronic mail system. SOLUTION: A transmitter side client 100 sends a mail with an alias file 104. The mail is stored in a mail box of a mail server 130. On a request of opening the alias file added to the mail stored in the mail box from a receiver side client 140, the mail server 130 references the alias file and down-loads a real file specified by the alias file from a document management server 120 and transfers the down-loaded real file to the receiver client 140.

8. 发明专利

JPH09204348A DOCUMENT MANAGEMENT SYSTEM 失效
公开(公告)号：JPH09204348A
公开(公告)日：1997-08-05
申请号：JP1253396
申请日：1996-01-29
申请人： HITACHI LTD
发明人： TADA KATSUMI , HASHIMOTO KAZUHIRO , KAMEDA SHIGERU , YAMAZAKI NORIYUKI , MATSUDA YOSHIKI , HASHIMOTO TETSUYA , AZUMA AKIO
IPC分类号： G06F12/00 , G06F9/44 , G06F9/46 , G06F9/50 , G06F15/16 , G06F17/30 , G06N5/04
摘要： PROBLEM TO BE SOLVED: To improve extendability, flexibility, stability and maintenability by obtaining system structure integrating environment for executing an object and environment for executing an agent and providing a means for executing the agent as the object. SOLUTION: Object executing environment 1 for executing a module mounting a function based on object-orientation and agent executing environment 2 for executing a module mounting a function based on agent-orientation are integrated. Then system structure enabling an object 3 on object executing environment 1 and an agent 4 on agent executing environment 2 to operate cooperatively is realized. Thereby a system developer mounts a function desired to operate stably by an object and a function changed frequently by an agent. The merit of an object-/agent-oriented paradigm is utilized for development like this.

9. 发明专利

JPH09126167A HERMETIC TYPE SCROLL COMPRESSOR 失效
公开(公告)号：JPH09126167A
公开(公告)日：1997-05-13
申请号：JP28129895
申请日：1995-10-30
申请人： HITACHI LTD
发明人： YAMAZAKI NORIYUKI , NOZAWA SHIGEKAZU , SAKURAI KAZUO
IPC分类号： F04C29/02 , F04C18/02 , F04C29/00
摘要： PROBLEM TO BE SOLVED: To stiffen a lap winding end portion low in lap stiffness in particular, which is located at a place where intake gas is enclosed by a turning scroll, by locally thickening the lap outer line outwardly in the radial direction at a place where the winding end portion of a turning scroll lap outer line is located. SOLUTION: A turning scroll 5 to be incorporated with a compression mechanism part has a lap winding end portion 5f thickened for example, in a range of 5h outwardly in the radial direction at a place out of a turning scroll lap outer line position 5g where intake gas is enclosed while being formed together with a stationary scroll inner line out of the two most hermetic chambers. Therefore, in a compression stroke by the turning scroll and the stationary scroll when intake gas is enclosed, strikes are reduced between the winding end portion of the turning scroll inner line and the winding end portion of the stationary scroll outer line, and an increase in input caused by lap striking and the degradation of reliability due to lap rupture caused by lap striking are thereby improved.

10. 发明专利

JPH048889A SCREW COMPRESSOR 失效
公开(公告)号：JPH048889A
公开(公告)日：1992-01-13
申请号：JP10757790
申请日：1990-04-25
申请人： HITACHI LTD
发明人： YAMAZAKI NORIYUKI , NOZAWA SHIGEKAZU , NAGATA KIMIO
IPC分类号： F04C18/16
摘要： PURPOSE:To utilize viscosity pumping effect with the rotation of a rotor itself, filling the required section with stable oil at all times and prevent gas leakage from a rotor deddendum section to the side of a bearing by forming a spiral groove on a shaft orthogonal with the edge of a rotor tooth. CONSTITUTION:Low-temperature and low-pressure refrigerant gas sucked from the side of a drive motor 16 is compressed by reducing the geared tooth profile space of a pair of male and female rotors 2 and 3 housed in a casing 1. Also, for compressing reaction in compression stroke, a thrust load is supported with ball bearings 11 and 12, while a radial load is supported with roller bearings 10, 13, 14 and 15. Also, oil is fed from an oil chamber exposed to delivery gas to a rotor deddendum shaft via an oil passage 23. In this case, a spiral groove 22 is formed on the rotor deddendum shaft section. Also, oil is fed from an oil groove 21 toward a tooth edge, with pumping effect available from the rotation of a rotor in the compression stroke. According to the aforesaid construction, a gap between the rotor deddendum shaft section and D-cover 4 as the enclosure thereof, and a casing inner surface is always filled with oil.

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