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1. 发明专利

JPS5696432A ELECTROMAGNETIC RELAY 失效
公开(公告)号：JPS5696432A
公开(公告)日：1981-08-04
申请号：JP17101879
申请日：1979-12-28
申请人： FUJITSU LTD
发明人： HANADA HIROTSUGU , MIURA TAKASHI , IHARA KENICHI , KINOSHITA YUUJI
IPC分类号： H01H50/58 , H01H50/54

2. 发明专利

JPS52103692A JACK TERMINAL 失效
公开(公告)号：JPS52103692A
公开(公告)日：1977-08-31
申请号：JP2098076
申请日：1976-02-27
申请人： FUJITSU LTD
发明人： IHARA KENICHI , HANADA HIROTSUGU
IPC分类号： H01R13/11 , H01R13/62
摘要： PURPOSE:To lengthen a service life and to improve a reliabilit y, by such that a contact piece be made supported by double end style, to enhance a strengt h of contact pressure, and a poor contact be hardly caused.

3. 发明专利

JPS52103668A ELECTROMAGNETIC RELAY 失效
公开(公告)号：JPS52103668A
公开(公告)日：1977-08-31
申请号：JP2098276
申请日：1976-02-27
申请人： FUJITSU LTD
发明人： IHARA KENICHI , HANADA HIROTSUGU
IPC分类号： H01H50/54 , H01H50/00 , H01H50/04 , H01H50/60

4. 发明专利

JPS5721019A METHOD OF SECURING CONTACT BALL 失效
公开(公告)号：JPS5721019A
公开(公告)日：1982-02-03
申请号：JP9606780
申请日：1980-07-14
申请人： FUJITSU LTD
发明人： MIURA TAKASHI , ASATSU ISAMU , IHARA KENICHI , OKAMOTO YOSHIO
IPC分类号： H01H11/06

5. 发明专利

JPS52103667A ELECTROMAGNETIC RELAY 失效
公开(公告)号：JPS52103667A
公开(公告)日：1977-08-31
申请号：JP2098176
申请日：1976-02-27
申请人： FUJITSU LTD
发明人： IHARA KENICHI , HANADA HIROTSUGU
IPC分类号： H01H50/54 , H01H50/04 , H01H50/14

6. 发明专利

JPH08136389A AIRTIGHT TESTING APPARATUS AND AIRTIGHT TESTING METHOD 失效
公开(公告)号：JPH08136389A
公开(公告)日：1996-05-31
申请号：JP27763394
申请日：1994-11-11
申请人： FUJITSU LTD
发明人： IHARA KENICHI , TSUKADA YOSHIYUKI , MATSUNO KESAFUMI , SATO SHINICHI
IPC分类号： G01M3/04 , G01M3/26 , G01M3/32
摘要： PURPOSE: To test airtight properties of a sample at low costs in a short time, by storing the sample in one of two airtight chambers communicating with each other via a U-shaped communication pipe, introducing the compressed air, closing an air valve, and measuring the difference of liquid levels in the communication pipe. CONSTITUTION: A liquid manometer 5 provided with airtight chambers 3, 4, a transparent U-shaped communication pipe 51 having front ends opened to the airtight chambers 3, 4 and a scale 53 for measuring the difference (h) of liquid levels in the communication pipe 51 constitutes the airtight testing apparatus. A sample 2 is stored in one airtight chamber 3, a lid part 32 is closed to seal the airtight chamber 3, air valves 64, 65 are opened to introduce the compressed air to the airtight chambers 3, 4 and then the valves 64, 65 are closed after the liquid levels in the communication pipe 51 are returned into the balanced state. The pressure is kept in the balanced state if the sample 2 has no defect. However, if the sample 2 is poorly airtight, the compressed air in the airtight chamber 3 invades the sample 2, thereby lowering the air pressure in the airtight chamber 3. As a result, the difference (h) is brought about between liquid levels in the communication pipe 51. In this manner, airtight properties of the sample 2 can be tested without letting in a liquid or the like into the sample 2.

7. 发明专利

JPS56147336A METHOD OF SETTING CONTACT CONTACTING PRESSURE FOR RELAY 失效
公开(公告)号：JPS56147336A
公开(公告)日：1981-11-16
申请号：JP5066480
申请日：1980-04-17
申请人： FUJITSU LTD
发明人： OKAMOTO YOSHIO , IHARA KENICHI , MIURA TAKASHI , ASAZU ISAMU
IPC分类号： H01H49/00

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