85results about How to "Less occurrence" patented technology

A novel polymerization catalyst for polyesters, which does not contain any germanium or antimony compound as the main component; polyesters produced with the catalyst; and a process for producing polyesters. This polymerization catalyst is excellent in catalytic activity, little causes thermal degradation of polyesters in melt molding even when neither deactivated nor removed, and can give thermally stable polyesters which little generate foreign matter and are excellent in transparency and color. The polymerization catalyst is one which contains as the first metal-containing component at least one member selected from the group consisting of aluminum and aluminum compounds and which gives polyethylene terephthalate (PET) having a thermal stability parameter (TS) satisfying the relationship: (1) TS<0.3

A reversible thermosensitive recording medium including a substrate, a reversible thermosensitive recording layer and an intermediate layer. The reversible thermosensitive recording layer is configured to reversibly record and erase an image therein and disposed overlying the substrate and includes a binder resin and a reversible thermosenstive coloring composition. The reversible thermosenstive coloring composition includes an electron donating coloring compound and an electron accepting compound. The intermediate layer includes another binder resin and a content of hollow particles having a hollow ratio not less than 70% and a ratio of a maximum particle diameter thereof to a 50% cumulative particle diameter of from 2.0 to 3.0. The reversible thermosensitive recording layer achieves a colored state when heated to a temperature not lower than a melting point thereof, and achieves a discolorization state when heated to a temperature lower than the melting point. The reversible thermosensitive recording layer has an erasable energy range width of at least 0.1 mJ / dot when using a thermal head.

A diaphragm for a pressure sensor includes: a central section serving as a diaphragm body, the central section including: an external surface deformed upon receipt of an external pressure; and an internal surface transmitting a force to a pressure sensitive element inside a housing of the pressure sensor; a peripheral section that is an exterior of the central section and welded to an outer circumference of a pressure input orifice that is provided to the housing; and a step wall provided between the central section and the peripheral section. The central section and the peripheral section are integrally and concentrically provided. The diaphragm seals the pressure input orifice.

Provided is an electroconductive member for electrophotography in which movement of a quaternary ammonium salt toward the surface of a binder resin is suppressed and which exhibits a less reduction in electroconductivity through electrification. The electroconductive member for electrophotography comprises an electroconductive shaft core and a resin layer, and the resin layer comprises a binder resin and at least one selected from quaternary ammonium salts having structures represented by the formulae (1) to (8).

The present invention provides a circuit board including a plurality of pads for mounting a semiconductor device with bumps and a plurality of wires drawn from the respective pads, a mounting structure for the semiconductor device with bumps, and an electro-optic device and an electronic device. The circuit board has a region where the pitch in the longitudinal direction and the lateral direction of the plurality of pads are different from each other and the wires are preferentially drawn from a wider pitch side of the longitudinal direction or the lateral directions of the pads.

The purpose of this invention, what is being patented, is the application of ultraviolet lights or reflective paint, coating or other material to serve as a means of creating a reflective surface for ultraviolet light. The advantages are many including use on any object that is subject to bird impact—solid or transparent—moving or non-moving, This invention is also valuable when applied to interior surfaces of sanitation equipment (like air conditioning ducts, ultraviolet air cleaners, ultraviolet water purifiers) which are then struck by ultraviolet light to reflect (or bounce) the light and enhance the area of coverage and effectiveness.

A plasma type ignition plug for igniting an internal combustion engine is disclosed having a negative electrode, a positive electrode, and a discharging distance fixing member, which includes an electrically conductive material replenishing section, made of an electrically conductive material available to melt when subjected to a heat of gas in plasma state, and an electrically conductive material replenished section to which the electrically conductive material is replenished. The discharging distance fixing member is covered on a surface of the negative electrode for initiating the spark discharge between a surface of the discharging distance fixing member and the positive electrode so as to avoid a fluctuation in a spark discharge distance caused by a wear of the negative electrode due to a collision of gas in the plasma state.

A novel polymerization catalyst for polyesters, which does not contain any germanium or antimony compound as the main component; polyesters produced with the catalyst; and a process for producing polyesters. This polymerization catalyst is excellent in catalytic activity, little causes thermal degradation of polyesters in melt molding even when neither deactivated nor removed, and can give thermally stable polyesters which little generate foreign matter and are excellent in transparency and color. The polymerization catalyst is one which contains as the first metal-containing component at least one member selected from the group consisting of aluminum and aluminum compounds and which gives polyethylene terephthalate (PET) having a thermal stability parameter (TS) satisfying the relationship: (1) TS<0.3.

A resist composition containing: a polymer having a group capable of decomposing under an action of an acid and having a weight average molecular weight of from 1,000 to 5,000, of which solubility in an alkali developer increases under an action of an acid; and a compound capable of generating a compound having a structure represented by the following formula (A-I) upon irradiation with actinic rays or radiation: Q1-X1—NH—X2-Q2  (A-I) wherein Q1 and Q2 each independently represents a monovalent organic group, provided that either one of Q1 and Q2 has a proton acceptor functional group, Q1 and Q2 may be combined with each other to form a ring and the ring formed may have a proton acceptor functional group; and X1 and X2 each independently represents —CO— or —SO2—.

A semiconductor device has a semiconductor substrate having first and second surface, a first resin film formed on the first surface of the semiconductor substrate and a second resin film formed on the second surface of the semiconductor substrate. A projection electrode or an interconnection is formed on the first surface of the semiconductor substrate, the second resin film is made of low elastic resin which is capable of absorbing an impact applied to the second surface of the semiconductor substrate and the second resin film is thinner than the semiconductor substrate.

Provided is an electrophotographic photosensitive member which can simultaneously achieve less occurrence of leakage and the definition of an output image even when being an electrophotographic photosensitive member where a layer containing a metal oxide particle is adopted as an electroconductive layer, and which includes a support, an electroconductive layer and a photosensitive layer in this order, wherein the electroconductive layer contains a binder material and a particle represented by general formula (1):TiO2.00−XNY  (1)wherein Ti represents a titanium atom, O represents an oxygen atom, N represents a nitrogen atom and 0.00<Y<X≤0.60 is satisfied.

An assembly for drilling and logging includes a device for electro pulse drilling (EPD device), at least one device to receive acoustic signals generated by the EPD device, distinguished in that the assembly further includes at least one device to receive electromagnetic signals generated by the EPD device. A method for drilling and logging, and device for electro pulse drilling.

Disclosed is a method for producing a cellulose ester film wherein a film-forming material containing the following components A-C is heated and melted, and a cellulose ester film is formed therefrom by melt-casting. A: a cellulose resin, B: an ester compound obtained by condensing an organic acid represented by Formula (1) and a polyalcohol, and C: an aliphatic polyester or an aliphatic-aromatic copolymer.

To provide a tennis ball felt which has less occurrence of creases at the time of forming a tennis ball. According to one embodiment, a tennis bass felt, which is covered on a core of a tennis ball, includes: a base fabric formed of stretchy material; and fibers fixed with the base fabric.

Provided is a toner that is excellent in heat-resistant shelf stability and low-temperature fixability, has durability, and causes less occurrence of fogging in high temperature and high humidity environments.The toner comprising at least a binder resin, a colorant, a release agent, a retention aid and a charge control resin. The binder resin is a copolymer containing a styrene-based monomer unit 67 to 78% by mass and a (meth)acrylic acid alkyl monomer unit 22 to 33% by mass. The content of the retention aid is 1 to 4 parts by mass with respect to 100 parts by mass of the binder resin, and the content of the charge control resin is 0.1 to 20 parts by mass with respect to 100 parts by mass of the binder resin.

A method of producing an electrophotographic blade member includes a continuous molding groove in an peripheral surface and an endless belt, in which the blade member includes a polyurethane resin cured a polyurethane composition having a viscosity of 500-3,000 mPa·s and including A)-D), and a position at which the composition is injected is set, on the belt, opposing to the groove, the position being away from a portion at which the molding drum and the belt are first contacted on an upstream for a moving direction of the belt: A) polyisocyanate; B) adipate-based polyester polyol having a number average molecular weight of 1,000-4,000; C) chain extender having a molecular weight of 200 or less; D) isocyanurate-forming catalyst at 20 to 500 ppm and a urethane-forming catalyst at 200-1,500 ppm.