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  1. No Access

    Article

    Prospective comparison study of a 550 picosecond 755 nm laser vs a 50 ns 755 nm laser in the treatment of nevus of Ota

    Since the introduction of selective photothermolysis, Q-switched nanosecond lasers have been used for the treatment of dermal pigmented lesions. Over the past several years, picosecond lasers have been introdu...

    Kotaro Imagawa, Taro Kono, Ushio Hanai, William F. Groff… in Lasers in Medical Science (2023)

  2. Article

    Open Access

    Polydactyly-derived allogeneic chondrocyte cell-sheet transplantation with high tibial osteotomy as regenerative therapy for knee osteoarthritis

    Allogeneic cell therapies are not fully effective in treating osteoarthritis of the knee (OAK). We recently reported that transplantation of autologous chondrocyte cell-sheets along with open-wedge high tibial...

    Kosuke Hamahashi, Eriko Toyoda, Miya Ishihara, Genya Mitani… in npj Regenerative Medicine (2022)

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    Article

    Mechanism of crescent-shaped and ring-shaped epidermal damage from laser hair removal with cryogen spray cooling

    The safety and efficacy of laser hair removal have been well established through many clinical studies and through clinical use over the past 25 years. A laser hair removal device that protects the epidermis b...

    Kotaro Imagawa, Taro Kono, Chieko Komaba, Satoru Yamamoto… in Lasers in Medical Science (2022)

  4. No Access

    Article

    Chronic expanding hematoma with feeding artery in the gluteus maximus muscle

    A case of chronic expanding hematoma which had a clear feeding artery from the inferior gluteal artery was presented. Chronic expanding hematoma with feeding artery demonstrated by preoperative MRI imaging is ...

    Tadashi Akamatsu, Kotaro Imagawa, Sachi Suzuki… in European Journal of Plastic Surgery (2016)

  5. Article

    Open Access

    A blinking periorbital prosthesis using surface electromyographic signals of the orbicularis oculi muscle

    Recent advances in human–machine interface technology have enabled the development of multifunctional, primarily orthopedic myoelectric prostheses. We developed a noninvasive blinking periorbital prosthesis th...

    Tadashi Akamatsu, Norimichi Kawashima… in European Journal of Plastic Surgery (2015)

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  6. No Access

    Article

    Kinetics of intracrystalline cation redistribution in olivine and its implication

    The rate of cation redistribution between M 1 and M 2 sites in olivine is theoretically studied on the basis of elementary processes of cationic migration. Cationic migration in olivine structure is assumed to be...

    Tadashi Akamatsu, Mineo Kumazawa in Physics and Chemistry of Minerals (1993)

  7. No Access

    Article

    Pressure effect on the divalent cation distribution in nonideal solid solution of forsterite and fayalite

    The divalent cation distribution in olivine (Mg, Fe)2SiO4 under high pressure and temperature was studied to clarify the detailed state of olivine in the mantle. Single crystal samples were heated for a sufficien...

    Tadashi Akamatsu, Mineo Kumazawa, Nobuyuki Aikawa… in Physics and Chemistry of Minerals (1993)

  8. No Access

    Article

    Pressure and temperature dependence of cation distribution in Mg-Mn olivine

    Synthetic (Mg0.51, Mn0.49)2SiO4 olivine samples are heat-treated at three different pressures; 0, 8 and 12 GPa, all at the same temperature (∼500° C). X-ray structure analyses on these single crystals are made in...

    Tadashi Akamatsu, Kiyoshi Fu**o, Mineo Kumazawa… in Physics and Chemistry of Minerals (1988)