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51. 发明专利

JPH11175238A WIRELESS KEYBOARD OR WIRELESS MOUSE 失效
公开(公告)号：JPH11175238A
公开(公告)日：1999-07-02
申请号：JP34639597
申请日：1997-12-16
申请人： HITACHI LTD
发明人： YAMAUCHI KOJI
IPC分类号： G06F3/02 , G06F3/033
摘要： PROBLEM TO BE SOLVED: To provide a wireless keyboard or a wireless mouse capable of adjusting the transmission distance and transmission range of optical signals in accordance with the style of use. SOLUTION: The transmission distance of optical signals is adjusted by an adjustment circuit composed of a variable resistor and a knob 12 for adjustment for regulating a current to a photo IC for transmitting the optical signals, and the transmission range (angle) of optical signals is adjusted by a circuit mechanism for adjusting the transmission range (angle) of optical signals from the photo IC. By adjusting this transmission distance or transmission area, even when the same types or different types of communication equipment are adjacently installed, the deformation of data caused by the interference of light can be eliminated by adjusting the communication distance and area (angle).

52. 发明专利

JPH11133759A PRINTING DEVICE 失效
公开(公告)号：JPH11133759A
公开(公告)日：1999-05-21
申请号：JP29817697
申请日：1997-10-30
申请人： HITACHI LTD
发明人： OUCHI YOSHIO , YASHIRO TETSUYA , YAMAUCHI KOJI
IPC分类号： G03G15/14
摘要： PROBLEM TO BE SOLVED: To prevent the vibration of metal wire, and to remarkably reduce the unwanted radiant noise arising from a printing device by disposing a notch having a wedge effect in an electrode section, and hung the metal wire in this notch. SOLUTION: This device, provided with a hook section of an electrode 72 fitting one end of the metal wire for discharging, being notched in a position for hanging installation metal fittings, is allowed to control a move of the installation metal fittings. Accordingly, in the section hanging the installation metal fittings, the semicircular notch 72a, and a slender notch 72b being notched toward the further side deeper than this semicircular notch 72a are formed. Therefore, the respective installation metal fitting is hung on the semicircular notch 72a however, the wedge effect generated at this time by the slender notch 72b being notched toward the deeper side, is applied to the section on which the respective installation metal fitting is hung so as to prevent it from moving. In this way, regardless of the metal wire tending to vibrate, the motion thereof is restrained by the wedge effect, therefore the metal wire can be prevented from the vibration.

53. 发明专利

JPH0224990B2 失效
公开(公告)号：JPH0224990B2
公开(公告)日：1990-05-31
申请号：JP17459380
申请日：1980-12-12
申请人： HITACHI LTD
发明人： MATSUOKA SHIGERU , TOKUNAGA TAKESHI , YONEKURA SEIJI , YAMAUCHI KOJI , SUZUKI MITSUO
IPC分类号： E05F15/10 , E05F15/00 , E05F15/12 , E05F15/16 , E05F15/20 , H02H7/085

54. 发明专利

JPS62187373A HEAT FIXING DEVICE FOR ELECTROPHOTOGRAPHIC DEVICE 失效
公开(公告)号：JPS62187373A
公开(公告)日：1987-08-15
申请号：JP2883286
申请日：1986-02-14
申请人： HITACHI LTD
发明人： MORI RIYOUHACHI , KIHARA MANABU , YAMAUCHI KOJI
IPC分类号： G01K1/16 , G01K1/14 , G03G15/20
摘要： PURPOSE:To obtain high-response performance by providing a noncontact temperature sensor used for a temperature detecting means nearby a heat roller and providing a cover which controls convection heat on the rear side of the noncontact temperature sensor. CONSTITUTION:The cover 9 prevents the air between the heat roller 1 and a thermistor 4 as the noncontact temperature sensor from moving the rear side of this thermistor in the heat-up period of the heat roller 1 to reduce the convection of air, and receives radiant heat from the heat roller 1 and conducts it to the part of the thermistor 4 contacting the cover 9. Further, the cover also controls a flow of air at the periphery of the thermistor so as to prevent the detected temperature of the thermistor 4 owing to the convection of the air at the periphery of the heat roller which is generated when the heat roller 1 makes one turn during fixing operation after the heat-up period. Consequently, the heat-up period of the heat roller is shortened to perform stable fixation temperature even during operation.

56. 发明专利

JPS6213541B2 失效
公开(公告)号：JPS6213541B2
公开(公告)日：1987-03-27
申请号：JP11936678
申请日：1978-09-29
申请人： HITACHI LTD
发明人： TSUBAKI TOSHIRO , TOKUNAGA TAKESHI , YONEKURA SEIJI , MATSUOKA SHIGERU , MIURA MAKOTO , YAMAUCHI KOJI
IPC分类号： E05F15/00 , E05F15/10 , E05F15/16 , F16H19/00 , F16H19/02

57. 发明专利

JPS6131336B2 失效
公开(公告)号：JPS6131336B2
公开(公告)日：1986-07-19
申请号：JP11936778
申请日：1978-09-29
申请人： HITACHI LTD
发明人： TSUBAKI TOSHIRO , TOKUNAGA TAKESHI , YONEKURA SEIJI , MATSUOKA SHIGERU , MIURA MAKOTO , YAMAUCHI KOJI
IPC分类号： E05F15/00 , E05F15/10 , F16H19/00 , F16H19/02

58. 发明专利

JPS6112142B2 JPS6112142B2 - 失效
公开(公告)号：JPS6112142B2
公开(公告)日：1986-04-07
申请号：JP7250478
申请日：1978-06-14
申请人： Hitachi Ltd
发明人： TSUBAKI TOSHIRO , TOKUNAGA TAKESHI , YONEKURA SEIJI , MATSUOKA SHIGERU , MIURA MAKOTO , YAMAUCHI KOJI
IPC分类号： E05F15/00 , E05F15/10 , E05F15/14 , F16H7/18 , F16H19/00 , F16H19/02

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