Abstract: A high frequency heating apparatus (1A) includes the following components: a first electrode (11) that is flat; a plurality of flat second electrodes (12) that are flat; a high-frequency power supply (20); a matching unit (30); a controller (40); and an electric field regulator (50). The second electrodes (12) are placed opposite to the first electrode (11). The high-frequency power supply (20) applies a high-frequency voltage to the first electrode (11). The matching unit (30) is placed between the first electrode (11) and the high-frequency power supply (20), and is impedance-matched with the high-frequency power supply (20). The controller (40) controls the high-frequency power supply (20). The electric field regulator (50) individually adjusts the electric field strengths in a plurality of regions located between first electrode (11) and the second electrodes (12). This aspect can reduce uneven heating.

Abstract: An RF energy radiation device of this disclosure comprises: an oscillator; a power amplifier; a radiation element; a detector; and a controller. The oscillator generates an RF signal. The power amplifier amplifies the RF signal to output RF power. The radiation element radiates the RF power. The detector detects progressive wave power. The controller performs an RF power output control using a closed-loop control for setting an output set value of the RF power by a closed-loop and an open-loop control for setting the output set value of the RF power by an open-loop. In a burst operation alternately switching between a period of outputting the RF power and a period of stopping the RF power, the controller changes the RF power output control from the closed-loop control to the open-loop control when a specified condition for change is satisfied during the period of stopping the RF power.

Abstract: A vehicle seat is provided for easy modification from a normal seat to a child's seat and restored from the child's seat to the normal seat and has excellent cushioning and restraining effects and a high degree of safety. The vehicle seat includes a sitting portion, an abdominal protecting pad housed in and upwardly pivotal from the sitting portion, side supporting members housed in and forwardly projectable from a seat back portion, and seat belts which can be attached to or detached from the abdominal protecting pad after being removed from the seat back portion or the side supporting members.

Abstract: Disclosed is a method for producing a toner for developing electrostatic images, which comprises the steps of kneading a mixture of raw materials comprising at least a resin and a colorant, cooling the kneaded mixture, pulverizing the cooled mixture, classifying the pulverized mixture, and feeding a fine powder separated by the classification step to a melt of the mixture of raw materials in the middle of the kneading step. The toner has improved fixability, durability and storage stability, with which stable and high-quality images are obtained even by continuous copying operation.

Abstract: Disclosed is a toner for flash fixation which comprises: (i) a resin containing (a) a low molecular weight compound having the peak of molecular weight in 3,000 to 60,000 by gel permeation chromatography (GPC) and (b) a high molecular weight compound having the peak or shoulder of molecular weight in 80,000 to 1,000,000 by GPC, with the weight ratio of the low molecular weight to the high molecular weight compound in the range of 97 to 60/3 to 40 and (ii) a coloring material or a toner for flash fixation which comprises (i) a resin containing (a) a low molecular weight compound having the peak of molecular weight (Lp) in 3,000 to 60,000 by GPC, (b) a middle molecular weight compound having the peak of molecular weight (Mp) in 5,000 to 100,000 by GPC and (c) a high molecular weight compound having the peak of molecular weight (Hp) in 80,000 to 1,000,000 by GPC, with the condition of Lp<Mp<Hp and (ii) a coloring material, and a method for fixing a toner by flash fixation using these.

Abstract: A toner for heat fixing comprising a styrene type resin and a colorant and satisfying the following formula:A.ltoreq.900 ppm and B.gtoreq.80%, orA.ltoreq.650 ppm and B.gtoreq.70%wherein A is a quantity of volatile components of the toner to be measured by a head space method, and B is a percentage of raw material monomers and solvents to be used in production of a binder resin in the quantity of the volatile components.

Abstract: A novel toner for developing electrostatic images is disclosed, which comprises at least a resin and a granulated carbon black having a grain hardness of 2 g or less as starting raw materials blended therein. In addition, a novel process for the production of the novel toner is described.

Abstract: An electrostatic image-developing positively chargeable toner comprising at least toner particles containing a resin and a colorant, and conductive fine particles having their surface treated with a positively chargeable resin.

Abstract: Disclosed herein is an electrostatic image-developing toner comprising particles of a toner precursor particles composed of at least a resin and a colorant, and powder of a compound represented by the following formula (I):M.sup.1 y.sub.1.M.sup.2 y.sub.2.M.sup.3 x.(OH).sub.2.Ax/n.mH.sub.2 O(I)(wherein M.sup.1 is at least one of the divalent metals selected from the group consisting of Mg, Ca, Sr and Ba; M.sup.2 is at least one of the divalent metals selected from the group consisting of Zn, Cd, Pd and Sn; M.sup.3 is a trivalent metal; A is an anion of n valency; x, yl, yz and m are the positive numbers satisfying the relations of 0<x.ltoreq.0.5, y.sub.1 +y.sub.2 =1-x and 0.ltoreq.m<2).