Abstract: There are disclosed polyprenyl sulfone derivatives of the general formula: ##STR1## wherein n represents an integer of 1-4, R.sub.1 represents an aryl group d R.sub.2 represents a hydroxymethyl or carboxyl group. The polyprenyl sulfone derivatives are prepared by cultivating a microorganism of the genus Nocardia capable of oxidizing a compound of the general formula: ##STR2## wherein n and R.sub.1 have the same meanings as defined above, in a culture medium containing a compound of the above general formula (II), and then collecting the oxidation product from the culture mixture. The polyprenyl sulfone derivatives are useful as intermediates for preparing various useful polyprenyl compounds.

Abstract: Polyprenyl carboxylic acid derivatives having the general formula (I): ##STR1## in which n is an integer of from 2 to 4, R.sub.1 represents the hydrogen atom or a protecting group for the carboxylic acid group, and R.sub.2 represents a hydroxymethyl, formyl or carboxyl group, are disclosed. A process for the preparation of the polyprenyl carboxylic acid derivative involving microbiological oxidation using a strain belonging to the genus Nocardia is disclosed. The compounds have anti-ulcer activity and hypotensive activity. The compounds also are useful as intermediates for preparing polyprenyl carboxylic acids of the formula ##STR2## and esters thereof, wherein l is an integer of from 4 to 11. The polyprenyl carboxylic acids and esters thereof have hypotensive activity and anti-ulcer activity.

Abstract: A thin film circuit including resistor elements and capacitor elements is prepared by forming a tantalum film for capacitor on an insulating substrate, forming a tantalum film for resistor over the substrate, covering a predetermined region of the tantalum resistor film with a titanium film, heat treating a resulting assembly, removing the titanium film, and then covering the predetermined region with a metal film to provide ohmic contact therebetween.

Abstract: A process is disclosed for the preparation of a compound having the general formula: ##STR1## wherein n is an integer of from 2 to 4, R.sub.1 is an ester-forming moiety effective as a protecting group for a carboxyl group, and R.sub.2 is hydroxymethyl, formyl or carboxyl. The compounds (I) are useful as intermediates for the preparation of polyprenyl compounds having hypotensive and anti-ulcer activity. The process of the invention includes cultivating a microorganism selected from a strain of the genus Nocardia called BPM 1613, FERM-P No. 1609, Corynebacterium equi IAM 1038, Candida lipolytica IFO 0746, and Mycobacterium smegmatis IFO 3083, in a nutritive culture medium, in the presence of a compound having the general formula: ##STR2## wherein R.sub.3 is an ester-forming moiety effective as a protecting group for a carboxyl group, whereby the microorganism utilizes the compound (II) as a carbon source and oxidizes the compound (II), thereby converting the compound (II) into the compound (I).

Abstract: Longer carbon chain polyprenyl ketone derivatives are prepared by cultivag Nocardia strain FERM-P No. 1609 in the presence of shorter carbon chain polyprenyl ketones.

Abstract: A process for the preparation of a two-functional-group-containing terpenoid having the general formula: ##STR1## in which n is an integer of from 1 to 5, R represents a hydroxymethyl, formyl or carboxyl group, and A represents the hydrogen atom, or a 2-tetrahydropyranyl, benzyl, methoxymethol or methoxyethoxymethyl group comprising the oxidation with a microorganism belonging to the genus Nocardia. Some of the terpenoids are of value as anti-ulcer agents, while others are useful as intermediates.

Abstract: This invention relates to novel polyprenyl ketone derivatives having the eral formula: ##STR1## in which n is an integer of 1-5, and R represents a hydroxymethyl, formyl or carboxyl group, and a process for the preparation of the same.

Abstract: A process for the preparation of a two-functional-group-containing terpenoid having the general formula: ##STR1## in which n is an integer of from 1 to 5, R represents a hydroxymethyl, formyl or carboxyl group, and A represents the hydrogen atom, or a 2-tetrahydropyranyl, benzyl, methoxymethol or methoxyethoxymethyl group comprising the oxidation with a microorganism belonging to the genus Nocardia. Some of the terpenoids are of value as anti-ulcer agents, while others are useful as intermediates.

Abstract: There are disclosed polyprenyl sulfone derivatives of the general formula: ##STR1## wherein n represents an integer of 1-4, R.sub.1 represents an aryl group d R.sub.2 represents a hydroxymethyl or carboxyl group. The polyprenyl sulfone derivatives are prepared by cultivating a microorganism of the genus Nocardia capable of oxidizing a compound of the general formula: ##STR2## wherein n and R.sub.1 have the same meanings as defined above, in a culture medium containing a compound of the above general formula (II), and then collecting the oxidation product from the culture mixture. The polyprenyl sulfone derivatives are useful as intermediates for preparing various useful polyprenyl compounds.

Abstract: A process for the preparation of a two-functional-group-containing terpenoid having the general formula: ##STR1## in which n is an integer of from 1 to 5, R represents a hydroxymethyl, formyl or carboxyl group, and A represents the hydrogen atom, or a 2-tetrahydropyranyl, benzyl, methoxymethol or methoxyethoxymethyl group comprising the oxidation with a microorganism belonging to the genus Nocardia. Some of the terpenoids are of value as anti-ulcer agents, while others are useful as intermediates.

Abstract: A pneumatic radial tire having a sandwiched structure formed by embracing side rubber between rubber filler and rubber chafer in the bead portion is disclosed. The tire has a high stiffness in the bead portion and has very excellent durable life.

Abstract: A process for the preparation of a two-functional-group-containing terpen having the general formula: ##STR1## in which n is an integer of from 1 to 5, R represents a hydroxymethyl, formyl, or carboxyl group, and A represents the hydrogen atom, or a 2-tetrahydropyranyl, benzyl, methoxymethol or methoxyethoxymethyl group comprising the oxidation with a microorganism belonging to the genus Nocardia. Some of the terpenoids are of value as anti-ulcer agents, while others are useful as intermediates.

Abstract: A pneumatic radial tire having a reduced rolling resistance and particularly suitable for a passenger car, comprising a toroidal carcass, a belt layer, a bead core, a side rubber, a tread rubber, a relatively thin base rubber, and a rubber filler, wherein provision is made of a stress relieving groove composed of a depression facing toward the bead rubber at a position near the joint portion between the side rubber and the tread rubber, the base rubber having a resilience which is higher than those of the tread rubber and the bead rubber.

Abstract: A pneumatic radial tire for passenger cars having a low rolling resistance is disclosed. The radial tire comprises a body reinforcement including a toroidal carcass composed of radially arranged cords and a belt superimposed about the carcass and consisting of plural rubberized plies each containing cords arranged at 60.degree.-80.degree. with respect to the radial plane of the tire, which cords of said plies being crossed with each other, and a bead reinforcement wherein the carcass is wound around a bead core to form a turnup portion, thread and sidewall rubbers covering these reinforcements. In the radial tire, a super-hard bead filler rubber is arranged at a region extending from the bead core to the middle part of the side portion, and a base rubber having a low loss modulus and a high resilience is arranged on at least both side edge parts of the belt at a volume ratio in the coating rubber for tread portion of 0.1-0.5.

Abstract: A process for the preparation of a two-functional-group-containing terpenoid having the general formula: ##STR1## in which n is an integer of from 1 to 5, R represents a hydroxymethyl, formyl or carboxyl group, and A represents the hydrogen atom, or a 2-tetrahydropyranyl, benzyl, methoxymethol or methoxyethoxymethyl group comprising the oxidation with a microorganism belonging to the genus Nocardia. Some of the terpenoids are of value as anti-ulcer agents, while others are useful as intermediates.

Abstract: A rubber composition comprising a sulfur-vulcanizable rubber, N,N'-dithiodiamine, a thermosetting resin and a curing agent has a high dynamic modulus in the vulcanizate. A tire using the vulcanizate as a bead filler rubber has improved impact absorbing property and vibration damping property and is excellent in the ride feeling.

Abstract: A shielding tent wherein a frame is fixed above a window or the like, a winding device for winding up a canvas or window screen is removably fitted to this frame, sliding frames each having a groove guiding and engaging the canvas or window screen are rotatably borne at the upper ends on both ends of the frame, a bottom member removably fitted in the horizontal direction below the window is rotatably connected at the outer end with the lower end of the sliding frame which is inclined outward.As required, side plates are rotatably pivoted to the sliding frames and the frame of the side plates is removably fitted to the bottom member so that the structure may be foldable and may have a pot or the like mounted on it.

Abstract: A pneumatic radial tire so constructed as to reduce a breaker interlayer shearing strain without adding any particular supplemental reinforcing layer is disclosed. The radial tire has an initial sectional shape which satisfies the following conditions.1. R.sub.1 /R.sub.1' .ltoreq. 0.82. r.sub.2 /w / r.sub.2' /w' .gtoreq. 1.53. modulus of a breaker cord .gtoreq. 10 .times. 10.sup.3 Kg/mm.sup.2, and4. Breaker cord angle .ltoreq. 25.degree.Where R.sub.1 is a radius of curvature of an outer profile of a carcass in a vertical center section through a rotational axis of the tire on a normal line to an outer curved surface through a widthwise end of a crown before the inside of the tire is pressurized, R.sub.1' is its corresponding radius of curvature after the inside of the tire has been pressurized, R.sub.2 is a radius of curvature of an outer profile of the crown in the vertical center section through the rotational axis of the tire before the inside of the tire is pressurized, R.sub.

Abstract: A pneumatic radial type tire having an improved durability in bead section comprises at least one carcass ply composed of metal cords in a substantially radial arrangement, at least one chafer composed of rubberized metal cords, a carcass reinforcing member secured to the surface of the carcass ply and composed of at least two rubberized cord fabrics whose cords are crossed with each other at an angle larger than 60.degree. with respect to the cord direction of the carcass ply, and a rubber stiffener composed of a composite rubber stock having a hardness which is made smaller at the upper part than at the lower part thereof.

Abstract: A pneumatic tired wheel having excellent highspeed performance after puncture comprises a tubeless tire, a bead stopper and a rim. The tubeless tire comprises a pair of elastic reinforcements having a Shore A hardness of at least 47, the bead stopper comprises an independent air-tight chamber and a crown portion with at least one inextensible reinforcing layer. The crown portion has an outer diameter determined in connection with the outer diameters of the flange of the rim and the tread portion of the tire.