Patents by Inventor Ichiro Ueda
Ichiro Ueda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240138055Abstract: A high frequency circuit includes a first insulating layer; a second insulating layer stacked on the first insulating layer directly or with one or more intermediate layers interposed therebetween; a first ground disposed on a first surface that does not face the second insulating layer among the first surface and a second surface forming two surfaces of the first insulating layer; a first line having a first end portion to which a first alternating-current signal is to be supplied and a second line having a second end portion to which a second alternating-current signal is to be supplied that are disposed between the first insulating layer and the second insulating layer; a second ground disposed on a third surface that does not face the first insulating layer among the third surface and a fourth surface forming two surfaces of the second insulating layer; and a first shield via.Type: ApplicationFiled: December 27, 2021Publication date: April 25, 2024Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shun IGARASHI, Hiroshi UEDA, Suguru YAMAGISHI, Ichiro KUWAYAMA
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Publication number: 20240117801Abstract: The purpose of the present invention is to improve insulating properties. This terminal unit (30) comprises: a plate-shaped base unit (40); a plate-shaped insulation unit (51) and a fitting insulation unit (52) that cover the plate surface of the base unit; a terminal (70) that extends in the Z axis direction, which is the direction intersecting the plate surface of the base unit (40), and penetrates the base unit (40) and the plate-shaped insulation unit (51); and an upper cylinder insulation unit (53) that extends along the Z axis direction from the plate-shaped insulation unit (51) and covers the side surface of the terminal (70). The plate-shaped insulation unit (51) and the upper cylinder insulation unit (53) are formed integrally.Type: ApplicationFiled: January 19, 2022Publication date: April 11, 2024Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Ichiro YOGO, Kosuke UEDA
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Patent number: 5610344Abstract: An environmental test apparatus comprising a substrate on which a test specimen is mounted securely, a cover disposed on the substrate for housing the test specimen within a tightly closed space thereof, a temperature/moisture adjusting system for adjusting temperature and moisture in the tightly closed space, a memory for storing control data such as accumulated past data or various kinds of environment reproduing data, a control system for controlling the temperature/moisture adjusting system based on the control data stored in the memory and a data measuring system for measuring and recording various kind of data for environmental test.Type: GrantFiled: January 5, 1996Date of Patent: March 11, 1997Assignee: Nippon Yusen KaishaInventors: Ichiro Ueda, Masanori Ishizuka
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Patent number: 5346035Abstract: A self-propelled fork lift truck comprises a working mechanism at the front end of the fork left truck, a revolving driver's stand, a driver's seat and a steering wheel mounted on the revolving driver's stand, a speed change gear having a plurality of speed shifting ratios for running in a forward direction and a plurality of speed shifting ratios for running in a backward direction, and a speed change gear controlling device. When the revolving driver's stand is turned facing the front end of the fork lift truck, the controlling device restricts the operation of the speed change gear to a first of the plurality of speed shifting ratios for running in the backward direction. When the revolving driver's stand is turned facing the rear end of the fork lift truck, the controlling device restricts the operation of the speed change gear to a first of the plurality of speed shifting ratios for running in the forward direction.Type: GrantFiled: January 4, 1993Date of Patent: September 13, 1994Assignee: Nippon Yusen KaishaInventors: Ichiro Ueda, Takashi Suzuki, Akihiko Sakai
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Patent number: 5308462Abstract: For applying ferroelectrics to electronic devices, the poling treatment of the ferroelectrics has been necessary in order to uniform directions of spontaneous polarizations, Ps, in each ferroelectric. This treatment brings about (1) low yields of the devices, (2) difficulties in the fabrication of array devices, and (3) difficulties in the formation of ferroelectric films on semiconductor devices. Now it has been found that a self-polarized film in which spontaneous polarizations, Ps, are unidirectional can be formed by sputtering a ferroelectric materials containing lead under such conditions that the orientation of Ps will be controlled without poling treatment and a high-performance ferroelectric device can be obtained in a high yield by using this film, and thus a process for producing such devices has been found.Type: GrantFiled: September 1, 1992Date of Patent: May 3, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenji Iijima, Ryoichi Takayama, Yoshihiro Tomita, Ichiro Ueda
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Patent number: 4442220Abstract: A dielectric ceramic composition consisting essentially of a solid solution represented by the formula:xBaO-yTiO.sub.2 -z{(Sm.sub.2 O.sub.3).sub.1-(v+u) (Pr.sub.2 O.sub.11/3).sub.v (Nd.sub.2 O.sub.3).sub.u }wherein 0.05.ltoreq.x.ltoreq.0.23, 0.57.ltoreq.y.ltoreq.0.825, 0.025.ltoreq.Z.ltoreq.0.375, x+y+z=1, 0<v.ltoreq.0.95, 0.ltoreq.u<0.95 and 0<(v+u).ltoreq.0.95.The dielectric ceramics exhibits high dielectric constant and low microwave loss with high temperature stability in resonant frequency and is suitable for use as dielectric resonators, electrical filters and substrate.Type: GrantFiled: April 13, 1982Date of Patent: April 10, 1984Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiromu Ouchi, Syunichiro Kawashima, Masamitsu Nishida, Ichiro Ueda
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Patent number: 4338403Abstract: A dielectric ceramic consisting essentially of at least 88 weight % of a main component and up to 12 weight % of stannic oxide (SnO.sub.2), said main component consisting essentially of 34.5 to 82 weight % of titanium oxide (TiO.sub.2), 9 to 63 weight % of Praseodymium oxide (Pr.sub.6 O.sub.11) and 2.5 to 23.5 weight % of barium oxide (BaO), at most 95 weight % of said praseodymium oxide being replaceable by neodymium oxide (Nd.sub.2 O.sub.3).It exhibits large dielectric constant and low microwave loss with large temperature-stability for resonant frequency and it is suitable for use as dielectric resonators, electrical filters, substrates, etc.Type: GrantFiled: May 21, 1981Date of Patent: July 6, 1982Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Syunichiro Kawashima, Masamitsu Nishida, Ichiro Ueda, Hiromu Ouchi
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Patent number: 4330631Abstract: A dielectric ceramic consisting essentially of a solid solution represented by the formula:xBaO--yTiO.sub.2 --zSm.sub.2 O.sub.3wherein 5.ltoreq.x.ltoreq.23, 57.ltoreq.y.ltoreq.82.5, 2.5.ltoreq.z.ltoreq.37.5, and x+y+z=100.The dielectric ceramic exibits large dielectric constant and low microwave loss with high temperature-stability in resonant frequency and is suitable for use as dielectric resonators, electrical filters, substrates and other uses.Type: GrantFiled: June 24, 1981Date of Patent: May 18, 1982Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Syunichiro Kawashima, Masamitsu Nishida, Ichiro Ueda, Hiromu Ouchi
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Patent number: 4248727Abstract: A dielectric ceramic having a composition expressible by (1-w) (xBaO.multidot.yNa.sub.2 O.multidot.zNb.sub.2 O.sub.5)+wMeO.multidot.ZrO.sub.2 wherein Me denotes Ca or Sr, 0.593.ltoreq.x.ltoreq.0.762, 0.04.ltoreq.y.ltoreq.0.13, 0.174.ltoreq.z.ltoreq.0.32, x+y-z=1, and 0<w.ltoreq.0.95. It exhibits large dielectric constant and low microwave loss with high temperature-stability for resonant frequency and is suitable for use as dielectric resonators, electrical filters, substrates, etc.Type: GrantFiled: December 4, 1979Date of Patent: February 3, 1981Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Syunichiro Kawashima, Masamitsu Nishida, Ichiro Ueda, Hiromu Ouchi
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Patent number: 4226827Abstract: A piezoelectric ceramic elements obtained by hot-press sintering a composition expressed by the formula:(1-w)PbTi.sub.1-z Zr.sub.z O.sub.3 +wMnO.sub.2at a temperature of 1050.degree. to 1300.degree. C. under a pressure of 100 to 500 Kg/cm.sup.2 for 0.5 to 24 hours shows a mechanical quality factor of 200 or more and a Poisson's ratio of more than 1/3 and gives a piezoelectric material having a large coupling coefficient which can be processed into a thin sheet having a thickness of 30 .mu.m and is especially suitable as a material for resonators and filters by utilizing its thickness extensional vibration.Type: GrantFiled: August 20, 1979Date of Patent: October 7, 1980Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masamitsu Nishida, Syunichiro Kawashima, Ichiro Ueda, Hiromu Ouchi
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Patent number: 4121941Abstract: Calcined material having a composition including at least two of the components 3BaO.ZnO.Nb.sub.2 O.sub.5, 3BaO.ZnO.Ta.sub.2 O.sub.5, 3BaO.MgO.Nb.sub.2 O.sub.5, and 3BaO.MgO.Ta.sub.2 O.sub.5 and produced under optimum processing conditions as disclosed is employed for obtaining ceramics having low microwave loss with large dielectric constant and suitable for use as dielectric resonators, electrical filters, substrates, etc.Type: GrantFiled: November 10, 1977Date of Patent: October 24, 1978Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Syunichiro Kawashima, Masamitsu Nishida, Ichiro Ueda, Hiromu Ouchi, Shigeru Hayakawa