Patents by Inventor Eiichiro Nakayama

Eiichiro Nakayama 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).

  • Purificating agent for flue gas and incinerated ash and purificating method using the same
    Patent number: 6652821
    Abstract: The present invention provides a purifying agent having an effect of removing or decomposing toxic substances contained in flue gas or incinerated ash. The purifying agent of the present invention contains one or more kinds of salts selected from alkali metal silicates, fluoride ion, hydrogencarbonate ion, and water-soluble alcohols or derivatives thereof.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: November 25, 2003
    Inventors: Yasuo Fukutani, Yoshiyuki Futahashi, Yukio Wada, Eiichiro Nakayama, Kikuko Fukutani, Masami Kojima, Kosuke Wada, Masayoshi Uchida, Shunji Suzuki, Naoya Fujii
  • Lubricating fluid
    Patent number: 6518225
    Abstract: The object of the present invention is to provide a water-base lubricating fluid or a water-base hydraulic fluid in place of an oily liquid which has been used as a lubricating oil or a hydraulic oil applied onto the operating part of a machine and a device. The lubricating fluid of the present invention comprises fluoride ion, hydrogencarbonate ion, and water-soluble alcohols or their derivatives.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: February 11, 2003
    Inventors: Yasuo Fukutani, Kikuko Fukutani, Yukio Wada, Eiichiro Nakayama, Yoshiyuki Futahashi, Chiyo Wada, Naomi Kitagawa, Mie Fukutani, Kosuke Wada, Shinya Fukushima, Sadayuki Futahashi, Yuko Okamoto, Sadao Futahashi, Kazuma Suzuki, Tamiko Tsuruta, Shunji Suzuki, Hitohiro Fukutani
  • Rust preventive
    Patent number: 6488749
    Abstract: An object of the present invention is to provide an aquarous rust inhibitor having low toxicity and excellent rust resistance, which contains saturated fatty acid, saturated dicarboxylic acid and salt thereof, derivatives of ethylenediamine tetraacetic acid, tolyltriazole or benzotriazole, fatty acid metal salt, and water.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: December 3, 2002
    Inventors: Yasuo Fukutani, Kikuko Fukutani, Yukio Wada, Yoshiki Ueno, Shinya Fukushima, Eiichiro Nakayama
  • Metal working fluid
    Patent number: 6448207
    Abstract: A metal working fluid, having excellent properties, contains a metal stearate, a carbonate, a hydrogencarbonate, and a surfactant. The metal working fluid may further contain ethyleneglycol and a rust inhibitor.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: September 10, 2002
    Assignees: Kikuko Fukutani, Mie Tanaka
    Inventors: Kikuko Fukutani, Mie Tanaka, Eiichiro Nakayama, Yoshiki Ueno, Shinya Fukushima, Kosuke Wada, Shunji Suzuki
  • Metal working water and metal working composition
    Patent number: 6258759
    Abstract: A metal-working water or a metal-working composition which has excellent cooling and lubricating properties and does not exert a harmful influence on the environment. A metal-working water containing sodium ion and one or more kinds selected from the group consisting of fluoride ion, hydrogencarbonate ion and silicon and being adjusted to pH 6.0 to pH 10 can be used as a substitute for a conventional cutting oil. A metal-working composition including a metal-working water with such additive as a rust-preventive agent and being adjusted to pH 6.0 to pH 10 can also be used.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: July 10, 2001
    Inventors: Sadao Futahashi, Yasuo Fukutani, Yukio Wada, Eiichiro Nakayama
  • Water-soluble cutting fluid
    Patent number: 6242391
    Abstract: A water-soluble cutting fluid which is characterized by excellent cooling and lubricating properties and does not exert a harmful influence on the environment. A solution containing hydrogencarbonate ion, bromide ion, carbonic acid ion, and, if necessary, fluoride ion, and being adjusted to a pH of 7.0 to 11.5 can be used as a substitute for a cutting oil. A water-soluble cutting fluid further including additives such as rust-preventive agents and the like can be also used as a substitute for conventional cutting oil.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: June 5, 2001
    Assignee: Yasio Fukutani
    Inventors: Yasuo Fukutani, Eiichiro Nakayama, Yukio Wada, Shunji Suzuki
  • Biodegradation process for treating organic wastewater
    Patent number: 5593592
    Abstract: A low concentration (0.1 to 0.5 mM) of aluminum ions is added to an organic wastewater to selectively raise specific bacteria which can grow without producing unpleasant odors. The bacteria is used for treating the organic wastewater of high density without producing odors thus contributing to the minimum size of a wastewater treatment system. Then, increase of the aluminum ions to a high concentration (more than 4 mM) accelerates flocculation and precipitation of the bacteria for disposal. When a proper mineral is added to the wastewater, a lower concentration (more than 1 mM) of the aluminum ions can encourage the flocculation and precipitation of the bacteria and also, a resultant sludge will be reduced in amount for ease of maintenance.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: January 14, 1997
    Inventors: Haruo Kagawa, Eiichiro Nakayama, Fumihiko Yoshimura