1
Meishi Tanaka, Shuji Sugiyama: Method of refining crude oil. Idemitsu Kosan, Frishauf Holtz Goodman Langer & Chick P C, December 22, 1998: US05851381 (64 worldwide citation)

A method of refining crude oil by distillation and desulfurization for the preparation of petroleum products can reduce cost of apparatus and cost of operation and can be operated with better stability by simplified control of operation. In the method, a naphtha fraction is separated from crude oil ...


2
Masami Takasaki, Meishi Tanaka, Hisao Anzai, Masashi Nakamura, Chisato Endo: Process oil, process for producing the same and rubber composition. Idemitsu Kosan, Oblon Spivak McClelland Maier & Neustadt P C, June 4, 2002: US06399697 (20 worldwide citation)

Process oil which satisfies requirements that a content of a polycyclic aromatic compound is less than 3% by weight, a content of an aromatic hydrocarbon is 18% by weight or more, a content of a polar compound is between 11 and 25% by weight, a kinematic viscosity at 100° C. is between 10 and 70 mm


3
Masami Takasaki, Meishi Tanaka: Processing oil and method for producing the same. Idemitsu Kosan, Oblon Spivak McClelland Maier & Neustadt P C, June 25, 2002: US06410816 (18 worldwide citation)

The processing oil contains polycyclic aromatic hydrocarbon, which is a substance known to be toxic to the human body, in an amount of less than 3 wt. % and an aromatic hydrocarbon in an amount of 25 wt. % or more, and has a kinematic viscosity at 100° C. of 10-30 mm


4
Masami Takasaki, Meishi Tanaka, Hisao Anzai, Masashi Nakamura, Chisato Endo: Process oil, process for producing the same and rubber composition. Idemitsu Kosan, Oblon Spivak McClelland Maier & Neustadt P C, August 12, 2003: US06605695 (4 worldwide citation)

A process oil which satisfies the requirements of (a) a content of a polycyclic aromatic compound of less than 3% by weight, (b) a content of an aromatic hydrocarbon of 18% by weight or more, (c) a content of a polar compound ranging from 11 to 25% by weight, (d) a kinematic viscosity at 100° C. ran ...


5
Meishi Tanaka, Masashi Nakamura, Kazuhiro Teshima, Akihito Abe, Masami Takasaki: Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil. Idemitsu Kosan, Oblon Spivak McClelland Maier & Neustadt L, July 5, 2011: US07972496 (2 worldwide citation)

The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass ...


6
Meishi Tanaka, Masashi Nakamura, Kazuhiro Teshima, Akihito Abe, Masami Takasaki: Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil. Idemitsu Kosan, Oblon Spivak McClelland Maier & Neustadt L, June 24, 2014: US08758595

The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass ...


7
Masami Takasaki, Meishi Tanaka: Processing oil and method for producing the same. Idemitsu Kosan, Oblon Spivak Mcclelland Maier & Neustadt PC, July 5, 2001: US20010007049-A1

The processing oil contains polycyclic aromatic hydrocarbon, which is a substance known to be toxic to the human body, in an amount of less than 3 wt. % and an aromatic hydrocarbon in an amount of 25 wt. % or more, and has a kinematic viscosity at 100° C. of 10-30 mm2/s, a density of 0.870-970 g/cm3 ...


8
Masami Takasaki, Meishi Tanaka, Hisao Anzai, Masashi Nakamura, Chisato Endo: Process oil, process for producing the same and rubber composition. Idemitsu Kosan, Oblon Spivak Mcclelland Maier & Neustadt PC, December 12, 2002: US20020188054-A1

A process oil which satisfies the requirements of (a) a content of a polycyclic aromatic compound of less than 3% by weight, (b) a content of an aromatic hydrocarbon of 18% by weight or more, (c) a content of a polar compound ranging from 11 to 25% by weight, (d) a kinematic viscosity at 100° C. ran ...


9
Meishi TANAKA, Masashi NAKAMURA, Kazuhiro TESHIMA, Akihito ABE, Masami TAKASAKI: Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil. Idemitsu Kosan, August 18, 2011: US20110198264-A1

The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass ...


10
Meishi Tanaka, Masashi Nakamura, Kazuhiro Teshima, Akihito Abe, Masami Takasaki: Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil. Idemitsu Kosan, Oblon Spivak Mcclelland Maier & Neustadt PC, January 22, 2009: US20090020453-A1

The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass ...