Abstract: Using the dope containing the following cellulose acetate (1), (2), or (3), a film is prepared by the casting process: (1) a cellulose acetate having carboxyl groups binding to at least one member selected from the group consisting of a cellulose acetate and a hemicellulose acetate, wherein at least a part of said carboxyl groups are in an acidic form; (2) a cellulose acetate containing at least one member selected from the group consisting of an acid having an acid dissociation exponent pKa of 1.93 to 4.50 in water, an alkali metal salt of said acid and an alkaline earth metal of said acid; or (3) a cellulose acetate containing an alkali metal or an alkaline earth metal wherein the total content of an alkaline metal and an alkaline earth metal in 1 gram of the cellulose acetate is from an effective amount to 5.5×10?6 equivalent (in terms of ion equivalent). The above cellulose acetate is also useful for spinning process. The cellulose acetate includes a cellulose diacetate and a cellulose triacetate.

Abstract: A method for designing a semiconductor integrated circuit includes: a step (a) of setting basic patterns including a plurality of active region/gate patterns each including a gate and an active region and a dummy gate while taking account of patterns of gates on the respective sides of each gate; a step (b) of forming a plurality of basic pattern combinations by combining some of the basic patterns; and a step (c) of forming a standard cell by combining some of the plurality of basic pattern combinations. The plurality of basic pattern combinations include a single transistor (large width), a single transistor (small width), and parallel connected N transistors (large width), for example.

Abstract: The present invention provides a semiconductor integrated circuit in which timing error is not likely to occur even if there is manufacturing variability. Logic cells 16 and 17, which are included in first and second clock circuits 11 and 12, respectively, are formed by transistors of a unified size. Even if there is manufacturing variability, delay time t1 of the first clock circuit 11 and delay time t2 of the second clock circuit 12 are increased or decreased by the same amount of time. Because of this, timing error is not likely to occur in a second flip-flop 15. A logic cell included in each clock cell may be formed by a transistor having a uniform rectangular-shaped diffusion region.

Abstract: The present invention provides a semiconductor integrated circuit in which timing error is not likely to occur even if there is manufacturing variability. Logic cells 16 and 17, which are included in first and second clock circuits 11 and 12, respectively, are formed by transistors of a unified size. Even if there is manufacturing variability, delay time t1 of the first clock circuit 11 and delay time t2 of the second clock circuit 12 are increased or decreased by the same amount of time. Because of this, timing error is not likely to occur in a second flip-flop 15. A logic cell included in each clock cell may be formed by a transistor having a uniform rectangular-shaped diffusion region.

Abstract: Using the dope containing the following cellulose acetate (1), (2), or (3), a film is prepared by the casting process: (1) a cellulose acetate having carboxyl groups binding to at least one member selected from the group consisting of a cellulose acetate and a hemicellulose acetate, wherein at least a part of said carboxyl groups are in an acidic form; (2) a cellulose acetate containing at least one member selected from the group consisting of an acid having an acid dissociation exponent pKa of 1.93 to 4.50 in water, an alkali metal salt of said acid and an alkaline earth metal of said acid; or (3) a cellulose acetate containing an alkali metal or an alkaline earth metal wherein the total content of an alkaline metal and an alkaline earth metal in 1 gram of the cellulose acetate is from an effective amount to 5.5×10?6 equivalent (in terms of ion equivalent). The above cellulose acetate is also useful for spinning process. The cellulose acetate includes a cellulose diacetate and a cellulose triacetate.

Abstract: A method is provided to mount a terminal connector, which gathers wirings that extend from a control valve unit, to a transmission case, which includes a mount portion with a mount hole, and which encloses the control valve unit. The method includes: (a) inserting the terminal connector into the mount hole until a portion of the terminal connector projects outwardly from the mount hole, and (b) outwardly pulling the inserted terminal connector from an outside of the transmission case to thereby mount the terminal connector to the mount portion. A structure includes: (a) a connector mounting arm of the control valve unit, and (b) the terminal connector mounted into the mount hole of the mount portion. The terminal connector includes a holder portion, which is engaged with the connector mounting arm and which is slidable relative to the connector mounting arm, upon mounting the terminal connector to the mount portion.

Abstract: Using the dope containing the following cellulose acetate (1), (2), or (3), a film is prepared by the casting process: (1) a cellulose acetate having carboxyl groups binding to at least one member selected from the group consisting of a cellulose acetate and a hemicellulose acetate, wherein at least a part of said carboxyl groups are in an acidic form; (2) a cellulose acetate containing at least one member selected from the group consisting of an acid having an acid dissociation exponent pKa of 1.93 to 4.50 in water, an alkali metal salt of said acid and an alkaline earth metal of said acid; or (3) a cellulose acetate containing an alkali metal or an alkaline earth metal wherein the total content of an alkaline metal and an alkaline earth metal in 1 gram of the cellulose acetate is from an effective amount to 5.5×10?6 equivalent (in terms of ion equivalent). The above cellulose acetate is also useful for spinning process. The cellulose acetate includes a cellulose diacetate and a cellulose triacetate.

Abstract: A scan flip-flop circuit has a scan test data output terminal QT in addition to a Q terminal and a /Q terminal. To the QT terminal, the data that have been held in an internal data holding circuit is transferred via a tristate buffer that has been incorporated in advance. The drive capability of the tristate buffer is determined so that a propagation delay time is obtained and the scan test data outputted from the QT terminal is propagated to the scan test data input terminal DT of the next stage scan flip-flop circuit. Consequently, during scan testing, a sufficient delay is added to the output from the scan flip-flop circuit, and hold errors do not easily occur.

Abstract: In a semiconductor integrated circuit, since resistance component is included in a power-supply wiring, a power-supply voltage supplied to a cell on a clock path is dropped to cause a clock skew. To avoid this problem, a cell-placement prohibiting area is set centering on a cell 10 on the clock path, and no cell for performing a logical operation is placed in this cell-placement prohibiting area. Also, a cell-placement prohibiting area may be set for each of cell groups formed of a plurality of cells closely placed together. Furthermore, a capacitive cell may be placed in the cell-placement prohibiting area.

Abstract: A circuit from which a buffer and an inverter are removed without changing logic is displayed. Such a circuit is obtained by a first or a second method. With the first method, all buffers which do not change logic and, when a clock path is divided at a branch point of wiring, all pairs of inverters located on each divided clock path are removed from the clock circuit. With the second method, a logic element located on a plurality of clock paths is copied and added to the clock circuit, all buffers which do not change logic and all pairs of inverters located between logic elements other than the above buffers are removed, and redundant partial circuits, if any, realizing the same logic and being located on a plurality of clock paths are removed. Thus, the clock circuit can be displayed so as to facilitate a designer's understanding of logic.

Abstract: The present invention provides a semiconductor integrated circuit in which timing error is not likely to occur even if there is manufacturing variability. Logic cells 16 and 17, which are included in first and second clock circuits 11 and 12, respectively, are formed by transistors of a unified size. Even if there is manufacturing variability, delay time t1 of the first clock circuit 11 and delay time t2 of the second clock circuit 12 are increased or decreased by the same amount of time. Because of this, timing error is not likely to occur in a second flip-flop 15. A logic cell included in each clock cell may be formed by a transistor having a uniform rectangular-shaped diffusion region.

Abstract: The present invention provides a cellulose acetate satisfying at least one requirement selected from the following requirements (A), (B) and (C), provided that the case where (B) alone is satisfied is excluded. Requirement (A): Bright spotty matters in sizes of 20 &mgr;m or more are not more than 20 units/mm3. Requirement (B): Blocking constant (K) is not more than 60. Requirement (C): The ratio (G′/G″) of storage modulus (G′) to loss modulus (G″) at a measuring frequency of 0.016 Hz is not more than 0.2.

Abstract: An exhaust emission control device comprises an oxidizing catalyst, a particulate filter on which soot is deposited, and a temperature sensor for detecting the temperature of exhaust gas on the upper-stream side of the filter. An intake system of an engine is provided with an EGR valve for returning the exhaust gas to the intake system. If the temperature of the oxidizing catalyst is found to be lower than its active temperature as the particulate filter is regenerated, the catalyst is heated by delaying the injection timing for the main fuel injection of the engine and increasing the EGR gas reflux quantity. Thus, the oxidizing catalyst can be heated up without lowering the fuel-efficiency, and soot on the particulate filter can be efficiently subjected to re-combustion.

Abstract: A method of mounting a terminal connector to a transmission case, the transmission case including a mount portion with a mount hole, the transmission case enclosing a control valve unit, the terminal connector gathering wirings extending from the control valve unit. The method includes inserting the terminal connector into the mount hole until a portion of the terminal connector projects outward from the mount hole, and pulling the inserted terminal connector from an outside of the transmission case outward to thereby mount the terminal connector to the mount portion. A structure including a connector mounting arm of the control valve unit, and the terminal connector mounted into the mount hole of the mount portion. The terminal connector includes a holder portion engaged with the connector mounting arm and slidable relative to the connector mounting arm upon mounting the terminal connector to the mount portion.

Abstract: The present invention provides a cellulose acetate satisfying at least one requirement selected from the following requirements (A), (B) and (C), provided that the case where (B) alone is satisfied is excluded.

Abstract: An exhaust emission control device comprises an oxidizing catalyst, a particulate filter on which soot is deposited, and a temperature sensor for detecting the temperature of exhaust gas on the upper-stream side of the filter. An intake system of an engine is provided with an EGR valve for returning the exhaust gas to the intake system. If the temperature of the oxidizing catalyst is found to be lower than its active temperature as the particulate filter is regenerated, the catalyst is heated by delaying the injection timing for the main fuel injection of the engine and increasing the EGR gas reflux quantity. Thus, the oxidizing catalyst can be heated up without lowering the fuel-efficiency, and soot on the particulate filter can be efficiently subjected to re-combustion.

Abstract: A scan flip-flop circuit has a scan test data output terminal QT in addition to a Q terminal and a /Q terminal. To the QT terminal, the data that have been held in an internal data holding circuit is transferred via a tristate buffer that has been incorporated in advance. The drive capability of the tristate buffer is determined such that a propagation delay time is obtained such that the scan test data outputted from the QT terminal is propagated to the scan test data input terminal DT of the next stage scan flip-flop circuit, and are well captured as desired to be held therein. Consequently, during scan testing, a sufficient delay is added to the output from the scan flip-flop circuit, and hold errors do not easily occur.

Abstract: The present invention provides a cellulose ester composition, containing 1 to 99% by weight of cellulose triacetate prepared by substituting hydroxyl groups of cellulose with acetyl and having a degree of substitution with acetyl, DSace, which satisfies the relationship: 2.7.ltoreq.DSace.ltoreq.3.0, and 99 to 1% by weight of a mixed fatty acid ester of cellulose prepared by substituting hydroxyl groups of cellulose with acetyl and acyl groups having three or more carbon atoms and having degrees of substitution with acetyl and acyl groups having three or more carbon atoms, DSace and DSacyl, respectively, which satisfy the relationships: (I) 2.20.ltoreq.DSace.ltoreq.2.95, (II) 0.05.ltoreq.DSacyl.ltoreq.0.80 and (III) 2.60.ltoreq.DSace+DSacyl.ltoreq.3.00.

Abstract: An object of the invention is to obtain cellulose acetate with improved physical properties, particularly film strength arid improved flexibility of the molded product. Cellulose acetate wherein average degree of acetylation is not less than 59%, viscosity average degree of polymerization (DP) is not less than 290, and concentrated solution viscosity (.eta.) according to the falling ball viscosity method for viscosity average degree of polymerization (DP) is expressed by the following formula (1): 2.814.times.ln(DP)-11.753.ltoreq.ln(.eta.).ltoreq.7.28.times.ln(DP)-37.059 (1) and a process for production thereof.

Abstract: Cellulose acetate propionate is a cellulose ester wherein hydroxyl groups of cellulose are substituted with acetyl and propionyl. Cellulose acetate propionate of the present invention has an amorphous index (Am) of 0.01 to 0.10. The present invention also provides cellulose acetate propionate having a degree of acetyl substitution (DSac) and a degree of propionyl substitution (DSpr) satisfying the formulas (I) to (IV).2.0<DSac.ltoreq.2.95 (I)0.05<DSpr.ltoreq.0.8 (II)2.6<DSac+DSpr.ltoreq.3.0 (III)1.