SI

Seiichi Ishikawa

Sumitomo Electric Industries: 9 patents #3,076 of 21,551Top 15%
NA Namics: 3 patents #23 of 113Top 25%
MC Mitsubishi Shindoh Co.: 2 patents #25 of 65Top 40%
Ricoh Company: 2 patents #5,693 of 9,818Top 60%
MM Mitsubishi Materials: 1 patents #812 of 1,543Top 55%
UN Unicharm: 1 patents #390 of 624Top 65%
Overall (All Time): #248,752 of 4,157,543Top 6%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
11905614 Terminal material for connector Naoki Miyashima, Kazunari Maki, Shinichi Funaki 2024-02-20
9805998 Liquid sealing material and electronic component using same Haruyuki Yoshii, Kazuyuki Kohara 2017-10-31
9748158 Liquid sealing material and electronic component using same Haruyuki Yoshii, Kazuyuki Kohara 2017-08-29
8981233 Conductive member and method for producing the same Takeshi Sakurai, Kenji Kubota, Takashi Tamagawa 2015-03-17
8698002 Conductive member and method for producing the same Takeshi Sakurai, Kenji Kubota, Takashi Tamagawa 2014-04-15
8586467 Method of mounting electronic component and mounting substrate Osamu Suzuki, Haruyuki Yoshii 2013-11-19
8499925 Conveying roller and method of making the same Shigeru Arimoto 2013-08-06
6005671 Facsimile system 1999-12-21
5636034 Data transmitting/receiving apparatus operating in a user-selected one of a line specifying mode and a free-line searching mode 1997-06-03
5073946 Thin speaker having an enclosure with an open portion and a closed portion Katsuaki Satoh, Kazue Sato, Kousaku Murata, Tsuneo Tanaka, Shuji Saiki +6 more 1991-12-17
5051942 Method and apparatus for calculating filter factors Masaharu Matsumoto, Katsuaki Satoh 1991-09-24
5023913 Apparatus for changing a sound field Masaharu Matsumoto, Katsuaki Satoh, Mitsuhiko Serikawa, Akihisa Kawamura, Hikari Hashimoto 1991-06-11
4899390 Thin speaker having an enclosure within an open portion and a closed portion Hiroyuki Takewa, Mitsuhiko Serikawa, Sawako Usuki, Yoichi Kimura, Shuichi Obata 1990-02-06
4896285 Calculation of filter factors for digital filter Masaharu Matsumoto, Katsuaki Satoh, Akihisa Kawamura 1990-01-23
4888808 Digital equalizer apparatus enabling separate phase and amplitude characteristic modification Masaharu Matsumoto, Katsuaki Satoh, Akihisa Kawamura 1989-12-19
4722009 Tone restoring apparatus Yasutoshi Nakama, Masayuki Misaki 1988-01-26
4484383 Method of manufacturing a speaker diaphragm Hiroyuki Takewa, Katsuaki Satoh 1984-11-27
4426556 Electrodynamic loudspeaker Shuji Saiki, Katuaki Sato, Kazue Sato, Hideaki Inoue, Tsuneo Tanaka 1984-01-17