Abstract: A vibration damping device for use in a automotive suspension system, adapted to be disposed at a linking portion between a body of the vehicle and a suspension member that connects and supports a wheel on the body is disclosed. The vibration damping device comprises a load sensing unit adapted to sense a signal corresponding to a load exerted between the body and the suspension member. A suspension system equipped with the same is also disclosed.

Abstract: There will be provided a printing method for block copy film and a block copy printer capable of adjusting printing density as occasion arises as well as making joints between print lines inconspicuous. A predetermined mount of conveyance of transparent resin film P will be set to 1/N (N is an integer of 2 or more) of a predetermined printing width, which is a line-up width of the exothermic elements, and printing at a predetermined printing width will be repeated after the transparent resin film P is conveyed in the predetermined amount of conveyance.

Abstract: An optical branched waveguide and an optical waveguide circuit which are easily fabricated, have a small size, and are low in cost. A linear first optical waveguide and second optical waveguide are crossed at a predetermined angle with respect to the substrate, a groove forming a predetermined angle relative to the optical waveguides and having a depth set to not less than the depth of the first and second optical waveguides is formed so as to include the intersecting region of the first optical waveguide and the second optical waveguide, and an optical element having a partial reflection and partial transmission function passing part of an incident light guided through the first optical waveguide therethrough and guiding this to the first optical waveguide and, at the same time, reflecting part of the incident light and guiding the same to the second optical waveguide is inserted into the groove so as to include the intersecting region of the first optical waveguide and the second optical waveguide.

Abstract: In order to couple and fix a first chassis and a second chassis, the first chassis is positioned relative to the second chassis. Then, coupling members are inserted into pairs of first and second coupling grooves, respectively. The first chassis has the first coupling grooves provided in upper portions of the first chassis and extending from a front wall along side walls, respectively, and the second chassis having second coupling grooves provided in lower portions of the second chassis and extending from a front wall along side walls, respectively. Finally, the coupling members are fixed to both of the first chassis and the second chassis.

Abstract: In order to couple and fix a first chassis and a second chassis, the first chassis is positioned relative to the second chassis. Then, coupling members are inserted into pairs of first and second coupling grooves, respectively. The first chassis has the first coupling grooves provided in upper portions of the first chassis and extending from a front wall along side walls, respectively, and the second chassis having second coupling grooves provided in lower portions of the second chassis and extending from a front wall along side walls, respectively. Finally, the coupling members are fixed to both of the first chassis and the second chassis.

Abstract: The present invention relates to a process for preparing hydrogen gas from the reduction of water, and also relates to a process for determining the ratio of the masses between hydrogen isotopes in the obtained hydrogen gas. The invention provides a process of preparing hydrogen gas comprising steps of: (i) preparing zinc metal particles having a size approximately in the range of 1 mm-2 mm by dropping a mixture of a selected amount of liquified zinc metal and 10 to 10000 ppm of nickel elements into a water bath; and (ii) reacting a sample of water with zinc metal particles at a selected reaction temperature to perform the reduction reaction of the water. The invention also provides a process of determining the ratio of the masses between hydrogen isotopes, .sup.1 H and .sup.2 H, in a sample of water. This process comprises a step of preparing hydrogen gas from the sample by the novel method described above.