Patents by Inventor Tamon Itahashi

Tamon Itahashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230064028
    Abstract: A solid phloroglucinolic resin comprises reacting a phloroglucinolic compound and a ketone in the presence of an acid catalyst. The solid phloroglucinolic resin formed includes multiple phloroglucinolic units defined by formula (I) wherein at least one of R1, R2, and R3 combines with a second phloroglucinolic unit to form a di-substituted methylene bridge, wherein the second one of R1, R2, and R3 is a hydrogen atom or combines with a third phloroglucinolic unit to form another di-substituted methylene bridge, and wherein the third one of R1, R2 and R3 is a hydrogen atom.
    Type: Application
    Filed: January 6, 2021
    Publication date: March 2, 2023
    Inventors: Tamon ITAHASHI, Toshihiro NOBUOKA, Michael C. WALKUP
  • Patent number: 11236190
    Abstract: A resorcinolic novolac resin composition comprising the reaction product of (i) an aldehyde or ketone, and (ii) aralkyl-substituted resorcinol and resorcinol, where the moles of the aralkyl-substituted resorcinol to the total moles of the resorcinol and aralkyl-substituted resorcinol is 0.01:1 to 0.4:1.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: February 1, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tamon Itahashi, David P. McNaughton, Koichiro Tajima, Michael C. Walkup
  • Publication number: 20200062884
    Abstract: A resorcinolic novolac resin composition comprising the reaction product of (i) an aldehyde or ketone, and (ii) aralkyl-substituted resorcinol and resorcinol, where the moles of the aralkyl-substituted resorcinol to the total moles of the resorcinol and aralkyl-substituted resorcinol is 0.01:1 to 0.4:1.
    Type: Application
    Filed: February 28, 2018
    Publication date: February 27, 2020
    Inventors: Tamon ITAHASHI, David P. MCNAUGHTON, Koichiro TAJIMA, Michael C. WALKUP
  • Patent number: 7800886
    Abstract: An electric double-layer capacitor comprising an electrode containing an activated carbon, an electrolytic solution containing an electrolyte and a separator, wherein the electrolyte is an imidazolium salt represented by the following formula (1) (wherein R and R? each independently represent alkyl group having 1 to 6 carbon atoms, R1 to R3 each independently represent hydrogen atom or alkyl group having 1 to 6 carbon atoms and X? represents a counter ion), and the activated carbon is produced by carbonizing an organic aerogel obtained by polymerizing a phenolic compound having at least one hydroxyl group in its molecule with an aldehyde compound in an aqueous solvent in the presence of a basic catalyst.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: September 21, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tamon Itahashi, Masahito Sekiguchi, Taketoshi Kikuchi, Naoki Inui
  • Patent number: 7785495
    Abstract: An activated carbon comprising a carbonized and activated compound represented by the formula (1): (wherein, R represents a hydrocarbon group having 1 to 12 carbon atoms, said hydrocarbon group may be optionally substituted with hydroxyl group, alkyl group, alkoxy group, aryl group, aryloxy group, sulfonyl group, halogen atoms, nitro group, thioalkyl group, cyano group, carboxyl group, amino group or amide group, R? represents hydrogen atom or methyl group, and n represents an integer of 4, 6, or 8).
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: August 31, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Taketoshi Kikuchi, Tamon Itahashi
  • Patent number: 7553988
    Abstract: A method is provided for producing a specific crosscoupling compound and a specific catalyst for producing the compound. The method includes reacting in the presence of a base and a nickel compound catalyst organic halide of the formula n?(R1X1n), wherein R1 is a hydrocarbon group and the ? and ? carbons to X? are sp3 carbon atoms; X1 is a chlorine, bromine, or iodine atoms, and n and n1 are 1 or 2 but not both 2, with a compound having the formula m{R2(BX22)n?} where an R2 is an aryl, heteroaryl, or alkenyl group, and n? is 1 or 2, X2 is independently a hydroxyl group, an alkoxy or arylalkoxy group or X22 together form an alkylenedioxy or arylenedioxy group, and m represents 1 or 2 but m?n, and the boron atom is bonded to a sp2 carbon atom of R2 group or a boronic acid trimer anhydride.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: June 30, 2009
    Assignee: Sumitomo Chemical Company, Limted
    Inventors: Tamon Itahashi, Takashi Kamikawa
  • Publication number: 20090103241
    Abstract: An activated carbon comprising a carbonized and activated compound represented by the formula (1): (wherein, R represents a hydrocarbon group having 1 to 12 carbon atoms, said hydrocarbon group may be optionally substituted with hydroxyl group, alkyl group, alkoxy group, aryl group, aryloxy group, sulfonyl group, halogen atoms, nitro group, thioalkyl group, cyano group, carboxyl group, amino group or amide group, R? represents hydrogen atom or methyl group, and n represents an integer of 4, 6, or 8).
    Type: Application
    Filed: May 24, 2006
    Publication date: April 23, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Taketoshi Kikuchi, Tamon Itahashi
  • Publication number: 20080094777
    Abstract: An electric double-layer capacitor comprising an electrode containing an activated carbon, an electrolytic solution containing an electrolyte and a separator, wherein the electrolyte is an imidazolium salt represented by the following formula (1) (wherein R and R? each independently represent alkyl group having 1 to 6 carbon atoms, R1 to R3 each independently represent hydrogen atom or alkyl group having 1 to 6 carbon atoms and X? represents a counter ion), and the activated carbon is produced by carbonizing an organic aerogel obtained by polymerizing a phenolic compound having at least one hydroxyl group in its molecule with an aldehyde compound in an aqueous solvent in the presence of a basic catalyst.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 24, 2008
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tamon Itahashi, Masahito Sekiguchi, Taketoshi Kikuchi, Naoki Inui
  • Patent number: 7238832
    Abstract: There is provided a method for producing a coupling compound of formula (1): (Y—)(n?1)R1—R2—(R1)(n??1)??(1) wherein R1, R2 n and n? are as defined below, Y is R2 or X as defined below, which method comprises reacting an organic halogen compound of formula (2): n?(R1X1n)??(2) wherein X1 represents a bromine or iodine, R1 represents a substituted or unsubstituted, linear, branched or cyclic hydrocarbon group of which ? and ? carbon atoms in relation to X1 are sp3 carbon atoms, n and n? each independently represent an integer of 1 or 2, and provided that n and n? do not simultaneously represent 2, with an organic boron compound of formula (3): m{R2(BX22)n?}??(3) wherein R2 represents a substituted or unsubstituted aryl group or a substituted or unsubstituted alkenyl group and the boron atom is bonded with a sp2 carbon atom thereof, X2 represents a hydroxyl or alkoxy group, n? is as defined above, m represents an integer of 1 or 2, and m is not more than n, in the presence of a catalyst comprising a) a nick
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: July 3, 2007
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tamon Itahashi, Takashi Kamikawa
  • Patent number: 7217677
    Abstract: A method is provided for producing a specific crosscoupling compound and a specific catalyst for producing the compound. The method includes reacting in the presence of a base and a nickel compound catalyst organic halide of the formula n?(R1X1n), wherein R1 is a hydrocarbon group and the ? and ? carbons to X? are sp3 carbon atoms; X1 is a chlorine, bromine, or iodine atoms, and n and n1 and 1 or 2 but not both 2, with a compound having the formula m{R2(BX22)n?} where an R2 is an aryl, heteroaryl, or alkenyl group, and n? is 1 or 2, X2 is independently a hydroxyl group, an alkoxy or arylalkoxy group or X22 together form an alkylenedioxy or arylenedioxy group, and m represents 1 or 2 but m?n, and the boron atom is bonded to a sp2 carbon atom of R2 group or a boronic acid trimer anhydride.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: May 15, 2007
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tamon Itahashi, Takashi Kamikawa
  • Publication number: 20060281925
    Abstract: A method is provided for producing a specific crosscoupling compound and a specific catalyst for producing the compound. The method includes reacting in the presence of a base and a nickel compound catalyst organic halide of the formula n?(R1X1n), wherein R1 is a hydrocarbon group and the ? and ? carbons to X? are sp3 carbon atoms; X1 is a chlorine, bromine, or iodine atoms, and n and n1 are 1 or 2 but not both 2, with a compound having the formula m{R2(BX22)n?} where an R2 is an aryl, heteroaryl, or alkenyl group, and n? is 1 or 2, X2 is independently a hydroxyl group, an alkoxy or arylalkoxy group or X22 together form an alkylenedioxy or arylenedioxy group, and m represents 1 or 2 but m?n, and the boron atom is bonded to a sp2 carbon atom of R2 group or a boronic acid trimer anhydride.
    Type: Application
    Filed: August 17, 2006
    Publication date: December 14, 2006
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Tamon Itahashi, Takashi Kamikawa
  • Publication number: 20060111593
    Abstract: There are disclosed a process for producing a coupling compound of formula (1): (Y-)n-1)R1-R2-(R1)(n?-1) ??(1), wherein R1 and R2 independently represent a substituted or unsubstituted aryl group, which process is characterized by reacting an unsaturated organic compound of formula (2): n?(R1X1n) ??(2) wherein n, n?, and R1 are the same as defined above, and X1 is the same or different and independently represents a leaving group and bonded with a sp2 carbon atom of R1 group, with a boron compound of formula (3): m{R2(BX22)n?}??(3) wherein R2 and n? are the same as defined above, X2 represents a hydroxy group, an alkoxy group, in the presence of a catalyst containing (A) a nickel compound, and (B) a nitrogen-containing cyclic compound, and the catalyst.
    Type: Application
    Filed: January 9, 2006
    Publication date: May 25, 2006
    Inventors: Tamon Itahashi, Takashi Kamikawa
  • Patent number: 7041856
    Abstract: There are disclosed a process for producing a coupling compound of formula (1): (Y—)(n?1)R1—R2—(R1)(n??1),??(1) wherein R1 and R2 independently represent a substituted or unsubstituted aryl group, which process is characterized by reacting an unsaturated organic compound of formula (2): n?(R1X1n)??(2) wherein n, n?, and R1 are the same as defined above, and X1 is the same or different and independently represents a leaving group and bonded with a sp2 carbon atom of R1 group, with a boron compound of formula (3): m{R2(BX22)n?}??(3) wherein R2 and n? are the same as defined above, X2 represents a hydroxy group, an alkoxy group, in the presence of a catalyst containing (A) a nickel compound, and (B) a nitrogen-containing cyclic compound, and the catalyst.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: May 9, 2006
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tamon Itahashi, Takashi Kamikawa
  • Publication number: 20040167364
    Abstract: There is provided a method for producing a coupling compound of formula (1):
    Type: Application
    Filed: February 18, 2004
    Publication date: August 26, 2004
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Tamon Itahashi, Takashi Kamikawa
  • Publication number: 20040161404
    Abstract: There are disclosed a method for producing a cross-coupling compound of formula (3):
    Type: Application
    Filed: January 14, 2004
    Publication date: August 19, 2004
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Tamon Itahashi, Takashi Kamikawa
  • Publication number: 20030162950
    Abstract: There are disclosed a process for producing a coupling compound of formula (1):
    Type: Application
    Filed: October 22, 2002
    Publication date: August 28, 2003
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tamon Itahashi, Takashi Kamikawa