Patents Assigned to Pola Chemical Industries Inc.
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Patent number: 5929104Abstract: Disclosed herein are a method for inducing apoptosis of cancer cells, which comprises administering an effective amount of a 2-nitroimidazole derivative represented by the general formula (1): ##STR1## wherein R represents an alkyl, alkenyl or alkynyl group substituted by 1 to 3 hydroxyl groups, and a method for treating a cancer, which comprises using the method for inducing apoptosis in combination with another means for killing cancer cells.Type: GrantFiled: April 2, 1997Date of Patent: July 27, 1999Assignee: Pola Chemical Industries, Inc.Inventors: Harumi Ohyama, Takeshi Yamada, Yoshiya Furusawa, Atsuko Kamohara, Mizuho Saito
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Patent number: 5888879Abstract: A make-up cosmetic product, which enhances the appearance of complexion, is evaluated by irradiating lights having a wavelength range of visible light onto a surface on which the make-up cosmetic product is applied, from at least two directions with different incident angles, measuring a plurality of spectra of reflected lights obtained from the irradiated lights, respectively, and comparing the spectrum patterns with each other. This clarifies the optical theory by which the skin looks beautiful and provides a method for evaluating a make-up cosmetic product making the skin look beautiful.Type: GrantFiled: June 13, 1997Date of Patent: March 30, 1999Assignee: Pola Chemical Industries Inc.Inventors: Kazuhiro Nishikata, Hirochika Nishimura
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Patent number: 5843674Abstract: A mammal is immunized by using an antigen of a peptide having an amino acid sequence existing in a region having low homology to amino acid sequences of tyrosinase-related proteins but included in an amino acid sequence of human tyrosinase, and then the spleen cells of the mammal is fused with cultured cells to prepare a hybridoma producing monoclonal antibody which binds to human tyrosinase and mouse tyrosinase but does not bind to the tyrosinase-related proteins.Type: GrantFiled: July 14, 1995Date of Patent: December 1, 1998Assignee: Pola Chemical Industries Inc.Inventors: Hiroyuki Takimoto, Satoshi Suzuki, Koushi Shibata, Shigeki Masui
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Patent number: 5747493Abstract: A method for inhibiting dopamine re-uptake and treating Parkinson's disease is disclosed comprising administering a compound represented by formula (1) or a physiologically acceptable salt thereof as the active ingredient: ##STR1## wherein R.sup.1 and R.sup.2 represent each hydrogen or halogen, R.sup.3 represents hydrogen, alkyl or acyl, R.sup.4 represents hydrogen, alkyl, acyl, alkylsulfonyl or optionally esterified carboxyl, Ar represents optionally substituted phenyl or nitrogenous monocyclic heteroaromatic group, m represents a number of 1 to 5, and n represents a number of 0 to 5.Type: GrantFiled: December 21, 1995Date of Patent: May 5, 1998Assignee: Pola Chemical Industries, Inc.Inventors: Takayuki Namiki, Toshihiro Morimoto, Kenichi Kishii, Nobuyuki Kawakatsu, Makoto Kimura, Kyoko Yamasaki, Mariko Onoda, Yuji Yoshiko, Kazunori Harada, Masayuki Yanagi, Takeshi Yamamoto, Masato Inazu, Masaki Mitani
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Patent number: 5532380Abstract: High purity 2-nitroimidazole derivatives having excellent radiosensitivity and high safety and useful as a drug to be used along with radiotherapy of various cancers can be prepared at a high yield from inexpensive diester of tartaric acid according to the following reaction formua, ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each individually represents an aliphatic group or an aromatic group, and X represents a halogen atom.Type: GrantFiled: July 18, 1994Date of Patent: July 2, 1996Assignee: Pola Chemical Industries, Inc.Inventors: Toshimitsu Suzuki, Azuma Nishio
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Patent number: 5468475Abstract: The cosmetic composition of this invention which is a 2-methacryloyloxyethylphosphorylcholine polymer (Poly MPC) in a preferable amount of 0.001% to 10% by weight based on the total weight of the cosmetic composition. The cosmetic composition can repair damage to the skin and hair, such as dryness, loss of luster, etc. and enhance the moisture preservation capability thereof. It also has a good feel when applied.Type: GrantFiled: November 15, 1993Date of Patent: November 21, 1995Assignees: Pola Chemical Industries Inc., Nobuo NakabayashiInventors: Masao Shaku, Sayuri Ohkura, Hideo Kuroda, Ai Kano, Nobuo Nakabayashi
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Patent number: 5391552Abstract: A diphenylpiperazine derivative represented by general formula (1), salt thereof, and drug for the circulatory organs containing the same as the active ingredient: ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different from each other and each represents hydrogen, halogen, alkyl, alkoxy, nitro, amino, hydroxy, optionally esterified carboxyl or trifluoromethyl; R.sup.3 represents hydrogen, alkyl, aralkyl, acyl, nitro or optionally esterified carboxymethyl; Ar represents phenyl or naphthyl which may have one to three substituents such as halogen, alkyl, alkoxy, aryloxy, aralkyloxy, nitro, amino, cyano, acyl, hydroxy, optionally esterified carboxyl, substituted sulfonyl, aryl or trifluoromethyl; Z represents sulfur or -NR.sup.4 - wherein R.sup.4 represents hydrogen, alkyl, aralkyl, acyl, aryl, substituted sulfonyl or optionally esterified carboxyl; m represents a number of 1 to 5; and n represents a number of 0 to 5.Type: GrantFiled: May 10, 1993Date of Patent: February 21, 1995Assignee: Pola Chemical Industries, Inc.Inventors: Masato Inazu, Yoshiyuki Miyata, Toshihiro Morimoto, Takeshi Yamamoto, Yuji Yoshiko, Kazunori Harada, Yoshiharu Momota, Masayuki Yanagi, Ryoko Yokota, Tetsuo Katoh, Takayuki Namiki, Makoto Kimura, Nobuyuki Kawakatsu
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Patent number: 5310749Abstract: Disclosed herein is an antiprotozoal composition containing a 2-nitroimidazole derivative as its active component. This drug is especially useful against Trypanosoma cruzi. Process for the preparation is also disclosed.Type: GrantFiled: May 21, 1991Date of Patent: May 10, 1994Assignee: Pola Chemical Industries Inc.Inventors: Yoshiyuki Miyata, Masakazu Sakaguchi, Toshimitsu Suzuki, Tsutomu Takeuchi, Seiki Kobayashi
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Patent number: 5270330Abstract: The present invention relates to a 2-nitroimidazole derivative represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different from each other and mean individually a hydrogen atom or an acyl group, and a radiosensitizer containing the same. The compound (I) according to this invention has an excellent radiosensitizing effect and high safety, so that a radiosensitizer containing the same is remarkably useful in the radiotherapy of cancers.Type: GrantFiled: July 24, 1992Date of Patent: December 14, 1993Assignee: Pola Chemical Industries, Inc.Inventors: Toshimitsu Suzuki, Masakazu Sakaguchi, Yoshiyuki Miyata, Akira Suzuki, Tomoyuki Mori
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Patent number: 5238678Abstract: Disclosed are a make-up cosmetic product containing, as a film-forming agent, a copolymer with a mean molecular weight of from 10,000 to 1,000,000, as prepared by copolymerizing an acrylate and a polymerizing carboxylic acid at a determined ratio or by copolymerizing an acrylate, at least one selected from vinyl acetate, methyl methacrylate and acrylamide and a polymerizing carboxylic acid at a determined ratio; and a double-coat type make-up cosmetic product comprising, a combination of an under make-up base for a first layer containing as a main component an adhesive film-forming agent such as said copolymer and a finishing make-up material for a second layer containing as a main component an aluminum powder.Type: GrantFiled: February 28, 1992Date of Patent: August 24, 1993Assignee: Pola Chemical Industries, Inc.Inventors: Junji Shiozawa, Kazuhiro Nishikata, Naoki Nakamura
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Patent number: 5111972Abstract: A container is capable of containing a plurality of creamy substances and of simultaneously extruding the plurality of creamy substances through holes formed in an upper wall. The container includes a tubular case provided with a plurality of chambers for containing the plurality of creamy substances, a tubular member disposed in each chamber for axial movement, a hollow cylinder rotatably fitted over the tubular member and having longitudinal teeth on its outer surface, the hollow cylinder being interlocked with the tubular member by means of screw threads, an extrusion plunger, fitted in each chamber for axial movement and including a plate member fitted in the chamber in a liquid-tight manner and a tubular boss projecting downwardly from the plate member, the latter being fitted between the tubular member and the hollow cylinder, and an operating member capable of simultaneously rotating the two hollow cylinderes.Type: GrantFiled: December 19, 1990Date of Patent: May 12, 1992Assignees: Pola Chemical Industries Inc., Yoshida Industry Co., Ltd.Inventors: Yoshihumi Sakurai, Yuzi Ideshita, Takashi Sugiyama
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Patent number: 5064849Abstract: A novel heterocyclic derivative of formula (I): ##STR1## wherein R.sub.1 represents ##STR2## and R.sub.2 represents hydrogen or acyl. When R.sub.2 is acyl, the derivative can be prepared, for example, by the following process: ##STR3## wherein R.sub.4 is acyl and R.sub.1 is ##STR4## The derivative is less toxic and has radiosensitizing activity and antiviral activity even at a low concentration.Radiosensitizing agents and antiviral agents containing the derivative as active component are also disclosed.Type: GrantFiled: April 18, 1990Date of Patent: November 12, 1991Assignee: Pola Chemical Industries Inc.Inventors: Toshimitsu Suzuki, Masakazu Sakaguchi, Yoshiyuki Miyata, Tomoyuki Mori
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Patent number: 4992442Abstract: Pyrrolo[3,2-e]pyrazolo[1,5-a]pyrimidine derivatives are disclosed. The compounds are represented by the formula (I), ##STR1## wherein R.sub.1 and R.sub.2 individually represent a hydrogen atom, a linear or branched alkyl group which may have a substituent, a cycloalkyl or phenyl group which may have a substituent, or a heterocyclic group which may have a substituent, and R.sub.3 is a hydrogen atom or a cyano group. The compounds have excellent circulatory disease curing activities as well as bronchodilation activities.Type: GrantFiled: October 3, 1989Date of Patent: February 12, 1991Assignee: Pola Chemical Industries Inc., JapanInventors: Michihiko Tsujitani, Kenichi Kishii, Masato Inazu, Toshihiro Morimoto, Yoshiaki Motoki, Ichiro Matsuo
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Patent number: 4982751Abstract: A compact case designed with a technique of enabling a cosmetic material to be discharged always smoothly while maintaining the desired performance of sealing the cosmetic material to prevent the same from hardening. A flat plate is disposed movably in a case body, and a sealed sack to be filled with the cosmetic material is disposed under this flat plate. A pump capable of being driven by the flat plate to discharge the cosmetic material is provided in the sealed sack. The pump has a discharge hole formed in the flat plate. A cover is stretched over the upper surface of the flat plate to cover the discharge hole. A slit is formed in the cover so as to communicate with the discharge hole.Type: GrantFiled: September 26, 1989Date of Patent: January 8, 1991Assignee: Pola Chemical Industries, Inc.Inventors: Yoshihiro Oishi, Nobue Tanaka
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Patent number: 4945102Abstract: A novel heterocyclic derivative of formula (I): ##STR1## wherein R.sub.1 represents ##STR2## and R.sub.2 represents hydrogen or acyl. When R.sub.2 is acyl, the derivative can be prepared, for example, by the following process: ##STR3## wherein R.sub.4 is acyl and R.sub.1 is ##STR4## The derivative is less toxic and has radiosensitizing activity and antiviral activity even at a low concentration.Radiosensitizing agents and antiviral agents containing the derivative as active component are also disclosed.Type: GrantFiled: September 21, 1988Date of Patent: July 31, 1990Assignee: Pola Chemical Industries Inc., JapanInventors: Toshimitsu Suzuki, Masakazu Sakaguchi, Yoshiyuki Miyata, Tomoyuki Mori
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Patent number: 4767492Abstract: An ultrasonic sealing apparatus is disclosed wherein a pair of sheet-like members a bottom portion of a tubular member is fuse-bonded together by frictional heat generated by ultrasonic vibration. The apparatus includes horn (1) and anvil (2) means interposed with members to be fuse-bonded together. The horn and anvil provide contact surfaces (3) in contact with the members to be fused. Each of the contact surfaces is formed with a plurality of grooves (4) to provide a plurality of protrusions (5). Each of the protrusions has a flat upper surface and slanted side surfaces (6), so that the protrusion has a trapezodial cross-section. The horn means applies ultrasonic vibration to the fuse-bonding surfaces of the members to be fused in a direction oblique or parallel therewith in association with the anvil means.Type: GrantFiled: November 24, 1986Date of Patent: August 30, 1988Assignee: Pola Chemical Industries, Inc.Inventors: Syoji Fukusima, Motosaburo Kato, Takashi Mochizuki
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Patent number: D319178Type: GrantFiled: November 20, 1989Date of Patent: August 20, 1991Assignee: Pola Chemical Industries, Inc.Inventors: Hirofumi Katada, Hiroyuki Matsuyama
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Patent number: D321643Type: GrantFiled: November 20, 1989Date of Patent: November 19, 1991Assignee: Pola Chemical Industries, Inc.Inventors: Hirofumi Katada, Hiroyuki Matsuyama
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Patent number: D321644Type: GrantFiled: November 20, 1989Date of Patent: November 19, 1991Assignee: Pola Chemical Industries Inc.Inventors: Hirofumi Katada, Hiroyuki Matsuyama
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Patent number: D321645Type: GrantFiled: November 20, 1989Date of Patent: November 19, 1991Assignee: Pola Chemical Industries Inc.Inventors: Hirofumi Katada, Hiroyuki Matsuyama