...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8031216 | Printer with platen roller guide on thermal head A printer avoids scratching or damaging the platen and print defects caused by adhesive. The printer 1 prints to thermal paper S that has an adhesive area 150 formed on one side with the edges of the paper adhesive-free, and color layers formed on the ... | 10/04/2011 |
| 7522178 | Heating resistance element, thermal head, printer, and method of manufacturing heating resistance element A thermal head is structured to have a substrate, a thermal storage layer formed on one surface of the substrate and made of glass, and heating resistors provided on the thermal storage layer. A plurality of hollow portions are formed at a position spaced apart from... | 04/21/2009 |
| 7414641 | Method of manufacturing thermal head Both ends of a head substrate in a longitudinal direction warp in a direction away from a cross section of a print substrate (in the convex shape) when a sealing resin is cured. A central portion of the head substrate in a longitudinal direction warps in a direction... | 08/19/2008 |
| 7250960 | Thermal head having adhesive interposed between adhesion surface of heat-dissipation plate and adhesion surface of head substrate and method for producing the same A thermal head includes a head substrate having a plurality of heating resistors which generate heat by electrical dissipation, a common electrode connected to one end of each heating resistor, and a plurality of individual electrodes connected to the other ends of ... | 07/31/2007 |
| 7248275 | Thermal head including Si substrate and method for manufacturing the same A thermal head includes a heat storage layer disposed on a substrate surface by lamination, a plurality of heating elements disposed on the heat storage layer, a plurality of individual electrodes, each connected individually to one end-portion of a heating element ... | 07/24/2007 |
| 7110015 | Thermal printing device and methods for manufacturing the same A thermal printing device includes a substrate, an insulation layer on the substrate, and a plurality of microheaters on the insulation layer. Two adjacent ones of the microheaters are separated by a trench. Each of the microheaters includes a body having a heating ... | 09/19/2006 |
| 7046265 | Power-saving thermal head A thermal head of the present invention is provided with a thermal insulation layer formed on a radiative substrate, a plurality of heating resistors formed on a top face of the thermal insulation layer, a plurality of power suppliers connected to the heating resist... | 05/16/2006 |
| 7038705 | Thermal head A layer of thermal insulator is disposed on at least one of an electrically insulating substrate, an adhesive layer and a heat dissipating plate downstream to heating elements on the substrate in a supply direction of a color thermal recording sheet when executing t... | 05/02/2006 |
| 7020961 | Method for manufacturing a bump-attached wiring circuit board An object of the present invention is to manufacture a bump-attached wiring circuit board with which stable bump connections are possible, and there is no need for bothersome operations such as plating pretreatments. A bump formation etching mask (7) is forme... | 04/04/2006 |
| 6456312 | Thermal head, method of manufacturing the same, and thermal stencil making apparatus using the same A thermal head includes a heat radiating plate and an electrical insulating substrate which is provided with a plurality of resistance heater elements arranged in a direction over a predetermined length and a plurality of electrodes for energizing the res... | 09/24/2002 |
| 6339444 | Thermal heat and thermal printer A thermal head of the present invention comprises a substrate (1221) consisting of a metal such as a stainless steel, insulating layers (1226, 1223), with raised portions (1225, 1224) being formed by raising up a part of the surface thereof, and exothermi... | 01/15/2002 |
| 5949465 | Thermal printhead, substrate for the same and method for making the substrate A thermal printhead according to the present invention includes a substrate (2) of an insulating material, a heating resistor (3) formed on the substrate (2) to form a plurality of heating dots, a conductor pattern (5, 6) formed on the substrate (2) for e... | 09/07/1999 |
| 5940109 | Thermal printhead, substrate for the same and method for making the substrate A thermal printhead according to the present invention includes a substrate (2) of an insulating material having a substantially flat surface, a heating resistor (3) formed on the substrate (2) to form a plurality of heating dots, a conductor pattern (5, ... | 08/17/1999 |
| 5903297 | Thermal recording apparatus Disclosed is a thermal recording apparatus for forming a desired visual image on a recording medium disposed on the opposite side, by utilizing a thermal energy of heating elements provided on a substrate. In the thermal recording apparatus using a therma... | 05/11/1999 |
| 5874983 | Thermal print head The printing cost is minimized by reducing the number of parts of a thermal print head used for printers, for such as a facsimile, and the quality of a printed product is improved by preventing the warpage of the thermal print head. A base plate mounting ... | 02/23/1999 |
| 5861902 | Thermal tailoring for ink jet printheads The present invention is a thermal printhead which includes a substrate portion, a resistive material configured to form a heating element and a thermal barrier island positioned between the resistive material and the substrate portion. The thermal barrie... | 01/19/1999 |
| 5739837 | Thermal printhead, and clip-type terminal lead and cover member used therefor A thermal printhead according to the present invention includes a stepped heat sink plate (1) having an upper first supporting surface (1a) and a lower second supporting surface (1b), a head substrate (2) mounted on the first supporting surface (1a) of th... | 04/14/1998 |
| 5660486 | Image printing apparatus and image printing method An image printing device includes a latent image charge keeping medium including a pyroelectric layer, a thermal head for selectively heating the charge keeping medium according to a signal, and an electrically conductive film disposed to be brought into ... | 08/26/1997 |
| 5661513 | Thermal head To realize a high-quality and high-speed printing which can sufficiently comply with high definition, a thermal head having a high heat resistance and excellent thermal responsivity comprises a high thermal conductivity substrate, a heat accumulating laye... | 08/26/1997 |
| 5568175 | Thermal print head A thermal print head, including a resistance substrate having a front and rear surface, a plurality of heating elements formed on the front surface of the resistance substrate for converting electrical energy into heat energy, a cooling board for dissipat... | 10/22/1996 |
| 5444475 | Thermal recording head A thin-film thermal recording head, used in a facsimile machine or a thermal printer, including heat resistors formed from only a Cr--Si--SiO or Ta--Si--SiO alloy thin-film resistor layer and a chromium, molybdenum, nickel, or tungsten thin-film conductor... | 08/22/1995 |
| 5416501 | Thermal head having substantially flush adjacent head substrates A pair of holes are formed with a predetermined space therebetween on a long and narrow base plate. An adhesive is applied to the surface of the base plate. Head substrates each having a row of thermal resistors on the surface thereof are placed on the ad... | 05/16/1995 |
| 5361086 | Divisional-type thermal printhead A divisional-type thermal printhead comprises an insulating base board, and a plurality of unit substrates arranged in series on the base board. The unit substrates have their respective common electrodes in electrical independence of each other. Further,... | 11/01/1994 |
| 5357271 | Thermal printhead with enhanced laterla heat conduction A thermal printhead incorporating an elongated heat conduction chamber which is oriented in alignment with an array of printhead heating elements and used to transfer heat along the array to equalize heat distribution. The chamber contains a heat transfer... | 10/18/1994 |
| 5353046 | Divisional-type thermal printhead A divisional-type thermal printhead comprises an elongate support member, and a crow of unit head substrates each fixed on the support member and carrying a resistor line extending longitudinally of the support member. A pair of V-shaped boundary spaces i... | 10/04/1994 |
| 5343232 | Multiple-needle electrode head There are disclosed a multiple-needle electrode head and its manufacturing method. The head comprises: a first head half body including at least two electrode substrates, each having needle-shaped electrodes formed in a row on its one surface and insulate... | 08/30/1994 |
| 5305021 | Thermal head A wide-spanning thermal head used in a printer comprises a plurality of radiator metal plates attached to a metal support plate and a plurality of head substrates formed from ceramics or the like, one each attached on top of each radiator plate. A constru... | 04/19/1994 |
| 5252988 | Thermal head for thermal recording machine A thermal head for a thermal recording machine including an insulating substrate which is composed of a printed circuit board made of a heat resistant resin and covered with a copper film, a plurality of thermal resistors disposed on the insulating substr... | 10/12/1993 |
| 5241326 | Line-type thermal printing head A line-type thermal printing head comprises an elongate support plate, an elongate head substrate mounted on the support plate, and a strip-like auxiliary substrate mounted on the support plate to extend longitudinally of the head substrate. The head subs... | 08/31/1993 |
| 5234709 | Process for producing thermal head A method of simultaneously producing a plurality of thermal heads having a ridge-shaped glaze structure uses first and second glass pastes, the second glass paste having a higher softening temperature than the first glass paste. The first glass paste is p... | 08/10/1993 |
| 5231422 | Recording head having two substrates superposed such that electrode supporting surface of one of the substrates faces non-electrode-supporting surface of the other substrate A recording head operable to apply an electric current to an electrically resistive layer, the head including two substrates each of which supports at least one electrode on one of opposite major surfaces thereof. At least one of the two substrates has an... | 07/27/1993 |
| 5223856 | Thermal head When the support member and cooling member of the thermal head are made of aluminum, and the head substrate is made of ceramic, the difference in the coefficient of thermal expansion of the two is very large, and the aluminum is expanded in use, and the g... | 06/29/1993 |
| 5182574 | Thermal head A thermal head for a thermal-transfer or heat-sensitive printer has a silicon substrate having a projection. A porous silicon layer having a small thermal conductivity is formed on the silicon substrate so as to cover at least the projection on the silico... | 01/26/1993 |
| 5148189 | Thermal print head A thermal print head includes a plurality of selective electrodes formed on a substrate, a common electrode formed on the substrate at a distance from the selective electrodes, and a fiber mounted on the substrate at a position between the common electrod... | 09/15/1992 |
| 5134018 | Hybrid substrate A hybrid substrate comprises an aluminum-based ceramic base substrate and a silicon layer provided on the base substrate.... | 07/28/1992 |
| 5109238 | Thick film resistor material and thermal head obtained therefrom A thermal head obtained by calcining a mixed material comprising at least ruthenium oxide particles having specific surface area of 10 to 45 m2 /g and a particle size of 1 μm as the upper limit value of particle size distribution, glass fine p... | 04/28/1992 |
| 5055859 | Integrated thermal printhead and driving circuit Disclosed is a thermal print head in which heating resistance elements are arranged with high density. The thermal print head comprises a head substrate, formed of a single-crystal silicon wafer, and a print driver circuit element. The print driver circui... | 10/08/1991 |
| 5041847 | Thermal head A thermal head comprising a substrate, a heat-resistant dielectric resin layer disposed on the substrate, a resistor layer disposed on the resin layer for forming a plurality of heating elements and an electrode layer disposed on the resistor layer for fo... | 08/20/1991 |
| 5028935 | Wide format thermal recording device A wide format thermal printhead is provided which comprises a baseplate; a first substrate with a border portion removed from a first edge thereof to form a second edge, the first substrate being mounted on the baseplate; and a second substrate with a bor... | 07/02/1991 |
| 4989017 | Thermal print head A thermal print head having a base, a glass glaze layer formed on the base by electrically-heated welding, and heating elements formed on the glass glaze layer. A manufacturing method of a thermal print head uses a furnace to accommodate molten glass and ... | 01/29/1991 |