专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

CA1329477C OXIDE RESISTOR 未知
公开(公告)号：CA1329477C
公开(公告)日：1994-05-17
申请号：CA484856
申请日：1985-06-21
申请人： HITACHI LTD
发明人： YAMAZAKI TAKEO , OGIHARA SATORU , KOSUGI TETSUO , SHIRAKAWA SHINGO , OWADA SHINICHI
IPC分类号： H01C7/00 , H01C7/112 , H01C17/30 , H01H9/42 , H01C7/10 , H01C7/12 , H01H33/16
摘要： A composite sintered oxide resistor comprising crystal grains of zinc oxide and crystal grains of a zinc oxide compound of other metal or semi-metal element than zinc, and a grain boundary layer having an electric resistance equal to or lower than that of the crystal grains of zinc oxide between the individual crystal grains of which has a very large withstanding capacity against switch surge, a small non-linear coefficient of voltage in the voltagecurrent characteristics, a positive, smaller resistancetemperature coefficient, and a small percent change in resistivity after heat treatment at 500.degree.C in the atmosphere.

2. 发明专利

DE3566184D1 OXIDE RESISTOR 未知
公开(公告)号：DE3566184D1
公开(公告)日：1988-12-15
申请号：DE3566184
申请日：1985-06-20
申请人： HITACHI LTD
发明人： YAMAZAKI TAKEO , OGIHARA SATORU , KOSUGI TETSUO , SHIRAKAWA SHINGO , OWADA SHINICHI
IPC分类号： H01C7/00 , H01C7/112 , H01C17/30 , H01H9/42 , H01C7/10 , H01C7/12 , H01H33/16
摘要： A composite sintered oxide resistor comprising crystal grains of zinc oxide and crystal grains of a zinc oxide compound of other metal or semi-metal element than zinc, and a grain boundary layer having an electric resistance equal to or lower than that of the crystal grains of zinc oxide between the individual crystal grains has a very large withstanding capacity against switch surge, a small non-linear coefficient of voltage in the voltage-current characteristics, a positive, smaller resistance-temperature coefficient, and a small percent change in resisitivity after heat treatment at 500° in the atmosphere.

3. 发明专利

JPH05121213A LINEAR RESISTOR 失效
公开(公告)号：JPH05121213A
公开(公告)日：1993-05-18
申请号：JP5477592
申请日：1992-03-13
申请人： HITACHI LTD
发明人： YAMAZAKI TAKEO , HAGIWARA SATORU , KOSUGI TETSUO , SHIRAKAWA SHINGO
IPC分类号： H01C7/00 , H01C7/10
摘要： PURPOSE:To increase a switching surge resistance quantity by permitting a resistor to contain silicon dioxide and at least one of the following; zinc oxide, magnesium oxide, aluminum oxide, yttrium oxide, gallium oxide, indium oxide. CONSTITUTION:A linear resistor is composed of zinc oxide as the major ingredient and magnesium oxide 0.1-10mol%, 0.1-20mol% of at least one of the following; aluminum oxide, yttrium oxide, gallium oxide, indium oxide, and silicon dioxide 1-2mol% are added (a high-resistance segregation layer is not provided between zinc oxide). The linear resistor is a composite sintered body composed of a crystal grain composed of zinc oxide and a crystal grain which has electric resistance of 100OMEGA-4X10 OMEGA, and an intercrystalline layer which has lower electric resistance than a zinc oxide grain is provided between the zinc oxide crystal grains. Thus, the small excellent linear resistor, which allows large switching surge quantity, small voltage non-linear coefficient of a voltage/current characteristic and a positive resistance temperature coefficient, is provided.

4. 发明专利

JPS60219704A VOLTAGE NONLINEAR RESISTOR AND METHOD OF PRODUCING SAME 失效
公开(公告)号：JPS60219704A
公开(公告)日：1985-11-02
申请号：JP7584884
申请日：1984-04-17
申请人： HITACHI LTD
发明人： SHIYOUJI MORITAKA , YAMAZAKI TAKEO , KOSUGI TETSUO
IPC分类号： H01C7/10 , C04B35/00 , C04B35/453

5. 发明专利

JPS59170445A Ceramic engine 失效
标题翻译：陶瓷发动机
公开(公告)号：JPS59170445A
公开(公告)日：1984-09-26
申请号：JP4679283
申请日：1983-03-18
申请人： Hitachi Ltd
发明人： TAKEDA YUKIO , KOSUGI TETSUO , IIJIMA SHIROU
IPC分类号： F02F3/00 , F02F7/00 , F16J1/01 , F16J9/28
CPC分类号： F02F7/0087 , F05C2203/0817
摘要： PURPOSE:To make the setting of a piston ring ever so easy, by dividedly combining the piston ring of ceramics of an engine whose piston and cylinder consist of a ceramics sintered body each. CONSTITUTION:A piston ring is manufactured in the following process that B4C of 0.5wt% and carbon of 1wt% are added to submicron SiC and mixed altogether and, after molding the mixture into desired form, it is burned at a temperature of 2,200 deg.C in a nonoxidation ambience for 30min long, then its surface is ground with a diamond wheel. This piston ring is divided into two parts, and it is designed so as to be slidable at an oblique contact part being halved so that not only it can be easily installed in a piston but also airtightness can be amply kept up.
摘要翻译：目的：为了使活塞环的设置变得容易，通过将活塞和气缸由陶瓷烧结体各自组成的发动机的陶瓷活塞环分开组合。构成：以下方法制造活塞环，其中将0.5wt％的B4C和1wt％的碳添加到亚微米SiC中并将其混合，并且在将混合物成型为所需形式之后，在2200℃的温度下燃烧。 C在非氧化环境中长达30分钟，然后其表面用金刚石砂轮研磨。该活塞环分为两部分，其设计成可在倾斜的接触部分被减半地滑动，使得它不仅可以容易地安装在活塞中，而且可以充分保持气密性。

6. 发明专利

JPS5938745B2 JPS5938745B2 - 失效
公开(公告)号：JPS5938745B2
公开(公告)日：1984-09-19
申请号：JP7203477
申请日：1977-06-20
申请人： Hitachi Ltd
发明人： SHIMAZOE MICHITAKA , KOSUGI TETSUO , TAKAHASHI YUKIO , KURIHARA YASUTOSHI
IPC分类号： G01L9/04 , G01L9/00 , H01L29/84 , H01L45/00

7. 发明专利

JPS5928070B2 JPS5928070B2 - 失效
公开(公告)号：JPS5928070B2
公开(公告)日：1984-07-10
申请号：JP8603077
申请日：1977-07-20
申请人： Hitachi Ltd
发明人： KURIHARA YASUTOSHI , SHIMAZOE MICHITAKA , KOSUGI TETSUO
IPC分类号： G01B7/16 , H01L29/84 , H01L45/00

8. 发明专利

JPS5978973A Electroconductive ceramics 失效
标题翻译：电焊陶瓷
公开(公告)号：JPS5978973A
公开(公告)日：1984-05-08
申请号：JP18759882
申请日：1982-10-27
申请人： Hitachi Ltd
发明人： MATSUSHITA YASUO , NAKAMURA KOUSUKE , KOSUGI TETSUO
IPC分类号： C04B35/10 , C04B35/111 , C04B35/56 , C04B35/58 , F23Q7/22 , H01B1/08 , H01B1/14 , H01C7/02 , H05B3/14
CPC分类号： C04B35/58 , C04B35/111 , C04B35/56 , C04B35/5607 , C04B35/5611 , C04B35/5622 , C04B35/58014 , C04B35/58028 , C04B35/58064 , C04B35/58071 , C04B35/645 , F23Q7/22 , H01B1/14 , H01C7/022 , H05B3/141

9. 发明专利

JPS5441680A MANUFACTURE FOR SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPS5441680A
公开(公告)日：1979-04-03
申请号：JP10775177
申请日：1977-09-09
申请人： HITACHI LTD
发明人： SUZUKI TAKAYA , KOSUGI TETSUO , OGAWA TAKUZOU
IPC分类号： H01L29/866 , H01L21/329
摘要： PURPOSE:To make accurate the impurity concentratonn control in growing layer, by mixing HCl with suitable amount in the rection gas, in performing epitaxial growing.

10. 发明专利

JPS53144282A SEMICONDUCTOR TYPE DISPLACEMENT CONVERTER AND ITS MANUFACTURE 失效
公开(公告)号：JPS53144282A
公开(公告)日：1978-12-15
申请号：JP5918077
申请日：1977-05-21
申请人： HITACHI LTD
发明人： KURIHARA YASUTOSHI , KOSUGI TETSUO , SHIMAZOE MICHITAKA
IPC分类号： G01L9/04 , H01L29/84 , H01L45/00
摘要： PURPOSE:To ensure an accurate and steady operation by unifying the semiconductor single-crystal thin leaf constituting a diaphragm and the semiconductor block containing a pressure transmitting hollow hole via a solder material of Ge or Gealloy featuring nearly the same heat expansion coefficient, the grid constant and the elasticity coefficiency as the semiconductor material.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式